Pokémon Red, Blue, and of course Yellow will always remain nostalgic games we will always cherish from our youth. If nothing else, we've grown up with them witnessing the addition of new movies, new generations, new regions, and, as always, new Pokémon. Going back to the original Generation 1 games, nothing screams "retro" like an old, glitchy hidden location you can find via a series of steps or by pressing a sequence of buttons. Or maybe a gentle nod of nostalgia to make us remember of our times and memories in previous games. How about some subtle fourth-wall breaking to get us to learn more about where ideas and concepts like Pokémon really come from? Or my favorite, an absolute game-destroying glitch that allows you to see what was not meant to be included in the game, revealed and realized.

In any case, hidden rooms and locations have been intricately placed throughout the vast regions of the Pokémon universe, and finding them is just a test of how good of a Pokémon trainer you really are. Here at TheGamer we take pride in such things and so, here are 20 hidden locations that even true fans haven't found in both Pokémon Red and Blue. These locations might have been hidden for years, but we hope that you have fun trying to find them for yourselves.

20 Just A Girl And Her Boyfriend

via: psypokes.com

If you’ve played Pokémon Red and Blue, you’ll remember Cerulean City’s Gym Leader, Misty, even more so if you’ve watched the anime series. That sweet orange-haired girl always made us wonder if she ever had a thing, if you will, for Ash... or maybe even Brock. But as for Red, the protagonist of Red and Blue? She did not. Maybe you’ve trained on Route 25 before heading to the Cerulean Gym; if you can’t remember, it’s the route up Nugget Bridge and into the forested area right before you find the Sea Cottage where Bill is located.

Misty can be seen with her boyfriend on a date.

There’s nothing special about it; nothing more than a couple of weak trainers and a chance to use the HM01, Cut, on some trees for some mediocre items. Three years later when you play as Ethan in Gold or Silver, if you head on over back to the Kanto Region in Cerulean Cape on Route 25, you’ll see Misty again with a new boyfriend. She’s still the Cerulean City Gym Leader. Unintentionally, you’ll interrupt their date, forcing Misty’s boyfriend to run off followed by her calling you a pest. Misty then notices your right Johto badges and understands the situation. She thus returns to the Cerulean Gym where you’ll be able to battle her for that badge.

19 Visiting The Makers Of The Game

via: screenrant.com

Although Nintendo published the Pokémon series, we owe the creation of such amazing games to the developers at GameFreak. They helped create a line of games such as Pokémon Red, Yoshi, and even the Game Boy Camera attachment. We don't often get to see them or meet them to thank of them of all their hard work and creativity. However, we can do so in the original Pokémon games, and so the tradition follows with the succeeding games.

Once you venture to Celadon City you'll find yourself at the Celadon Condominiums. On a certain floor, you'll see a handful of scientists behind some computers. If you manage to talk to one, they'll let you know what they do and who they are. One of them, for example, is the graphic artist, another a developer, and so on. When talking to one of them, he'll ask for you to return to him once you catch all 151 Pokémon (even though you can only catch 135 without trading or glitches). If you still do manage to catch 'em all (including Mew), he'll hand you a diploma. The diploma lets people know that you, the Pokémon master, have caught all 151 Pokémon in the game.

18 The Missing Door Of Celadon City

via: screenrant.com

Celadon City is a pretty big city. It may not look huge from an 8-bit standpoint, but if you check out the anime, the city's quite immense. That said, players have found certain secrets about the city and most importantly, hidden locations. Now, if we use the infamous GameShark device, players will find themselves...teleporting? If one were to exit on the eastern side of the Prize Exchange building in the downtown area with the codes 01xxB5D3 or 01xxB1D3, it'll allow you to use a particular unused warp point.

Once you enter and exit the building, you'll suddenly find yourself on the western exit. Exiting the third time will warp you to the staircase of the building inside the first floor of the Prize Exchange building. The fourth exit teleports you to the elevator. The fifth one goes to the city's Pokémon Center. The sixth, to Celadon City's Pokémon Gym. The seventh; to the casino. And then, finally, the eighth exit will bring you to a building with no door in the middle of the city. Fans speculated that this was probably an unused door that would have potentially made into the game. It would have been an interesting addition, if the developers ever revealed what the door would have led to.

17 Taking A Trip To The Museum

pewter city museum pokemon

Some of the Pokémon in the original games are actually extinct. Some of these include Kabuto, Omanyte, and Anorith. However, those skimming through their Pokédex will often find #142 as blank as ever. Pokémon #142 is none other than Aerodactyl, "A ferocious, prehistoric Pokémon that goes for the enemy's throat with its serrated saw-like fangs," according to the Generation 1 Pokédex. There's only one way to get an Aerodactyl in the early games, since, as I mentioned before is extinct. A player needs to make his/her way behind the Pewter City Museum by using the HM 01 move, Cut.

This is the only way in this ancient game to get this ancient Pokémon.

If a player succeeds in doing so, he or she will encounter a random scientist NPC. If the player talks to the NPC, the scientist will gladly provide the player, the Old Amber stone. At first, you ask yourself, "What am I supposed to do with this, and why did he give me a random rock?" However, if the player makes it to Cinnabar Island, the Super Nerd who transforms the fossil you found at Mt. Moon (either the Helix or the Dome fossil) into Pokémon. Moreover, bringing the Super Nerd the Old Amber fossil given to you at the Pewter City Museum will award you with a long-awaited and well-deserved Aerodactyl.

16  The Ocean-Safari Zone

via: clipzui.com

The Safari Zone was always a trouble for me as a young kid. I'd get lost, catch unnecessary Pokémon, and scare off the good ones by throwing rocks at them. At one point, I had to ask one of my classmates to do it for me, to which she breezed through as if it was nothing. However, a hidden location can be found if a player uses the Safari Zone.

Now, if the player enters the Safari Zone, leaves right after, then fast-travels to Cinnabar Island, a pixelated change will take place in the ocean. If the player ventures from the Pokémon Center to the ocean and then surfs on it, they'll encounter a variety of Pokémon that should be nowhere near water in the first place. Upon surfing the coastal waters of Cinnabar Island, the trainer will find Safari-specific Pokémon such as Tauros.

What's cool is that players can catch these Pokémon just as they would when traveling around in the wilds. They don't need to throw a rock at them, they can catch them just normally, with items, Pokémon and with a Poké Ball. The only downside is that this glitch can mess up your game, and even make the water look all pixelated and rough. So if you ever feel like discovering this hidden zone, make sure you've completed the game first.

15 Battling The Professor

via: youtube.com

There exists a glitch that, according to the Pokémon Bulbapedia, "allows easy access to several glitch Pokémon for Special stats of 191 or higher." To do this, one must venture to Pokémon Mansion or Cerulean Cave where they can find Ditto. By sending a Pokémon to battle a wild Ditto, Ditto will use transform to replicate the Special Stat of said Pokémon. A glitch will follow if the trainer doesn't encounter another Pokémon and thus will have an exponential Special stat. This can allow players to battle with Professor Oak, interestingly enough as explained in this video.

"Sorry to keep you waiting! Welcome to the world of Pokémon! My name is Professor Oak. But everyone calls me the Pokémon Professor."

As seen in the video, you'll see that upon surfing the coast of Cinnabar Island, you'll find Professor Oak, funnily enough. This hidden location introduces us to what many fans have seen as the true final boss of the original Pokémon games. It's entirely plausible that he was intended to be battled with at some point in the game, but the idea was obviously scraped. He's no easy foe. Sometimes he'll have high-leveled Pokémon including Tauros, Exeggutor, Gyradaos, and Arcanine. However, in the video the glitch was, in fact, so glitchy that Prof. Oak uses MissingNo and a random unnamed red glitch sprite that will attack you with a TM05, strangely enough.

14 Skipping Pewter City Gym

via: archie:sonicpokémonwiki.com

A rather famous glitch known as "Brock Through Walls" that allows the player to seemingly walk over barricaded landscape, water, and even NPCs. When I first heard about this, I was a bit shocked to hear such an old game have such a powerful glitch, but then again, old (or rushed) games are notorious for being glitch-fests. As explained in this video, the player needs to manipulate the pathway of a certain youngster Pokémon trainer in between Pewter and Cerulean City.

By doing so, they'll be granted the ability to walk wherever and whenever they please so long as it's within the side-scrolling frame of the video game. This glitchy strategy can be used before facing Brock at the Pewter City Gym. Many players, and especially speed runners will use this tactic to rid themselves of the need (or the challenge if you picked Charmander) to face Brock and his cronies inside the Gym. This would have been obviously a good tactic to know for those of us like me who had nothing but a lowly-leveled Charmander, a Metapod and a Rattata, expecting that Brock would be as easy as the trainers I faced in Viridian Forest, or as dull as he portrays himself in the anime.

13 What Lurks In Cerulean City's Cave

via: smashversewiki.com

Yes, Niko, we all know what lurks in Cerulean Cave. And yes, I did write my previous article about Mewtwo and all of his glamour. But alas, the brave men and women of 1996 had no idea what kind of vicious creature stood in their way as they had just defeated the Elite Four, Gary, Team Rocket, and every other single trainer in the game. This hidden location struck many nerve-racking fans who strove desperately to find that last Pokémon known as Mewtwo. When Cerulean Cave was finally discovered, things turned pretty exploratory, if you will. When we thought our game was finished, crowning us as Kanto Region's Pokémon champion, we have yet to face the (arguably as per my previous article) most powerful Pokémon to this day; Mewtwo.

This Pokémon was beyond anything we ever saw, let alone its striking power and abilities. If you, like me as a young Pokémon trainer, succeeded in finding what Pokémon lurked in Cerulean Cave and was able to catch it, good on you for defeating Mewtwo in all his might. Seriously, check out my previous article to get a better insight into how powerful the Cerulean City Lurker actually is!

12 The Glitch That Shook The World

via: egmnow.com

Ah yes, all hail the mighty MissingNo. Not really a Pokémon, although still technically a Pokémon. This one's not an easy one to catch; he doesn't even show up in the Pokédex. There's a series of steps you'll have to do, which later became dubbed among fans as the Old Man glitch. Players will need to head on over to the northern area of Viridian City and watch the old man there demonstrate to you on how to catch a Pokémon. It's boring. Then you'll need to fly to Cinnabar Island and use a Pokémon that you have on you that knows surf to ride the waves of the eastern coast of the island.

Players need to surf up and down the coast a number of times to catalyze the glitch. After maybe a minute, players will go into battle mode, having encountered a wild Pokémon. Then you'll find yourself face to face with the incredibly glitchy looking thing that appears nothing like the average Pokémon. It should be noted that getting to this location is tricky and has a side-effect of wiping destroying your save file. Not something to do if you're in the middle of the game...

11 Glitch City

via: wikihow.com

Good old Glitch City. For those who have no idea what Glitch City is or for those that never ventured into it, brace yourselves. Entering this place can make things more than weird. Numbers, red water, cut-off houses, and weird displacements will appear all over the place once you follow the necessary steps. Boringly, it's a map without data, according to Bulbapedia. The player can find Glitch City should they enter a Safari Game. Immediately after entering, they should leave and when asked if they wanted to end the game early, they must say no. They should then save the game and reset.

Now, when they leave the Safari Zone a second time, they should deny the attendant's offer again and then leave through the Southern exit of the Safari Zone. Once the player takes 500 steps outside the Safari Zone, the attendant's PA announcement will explain that the game will be over and the player will then be teleported to Safari Zone gate. If you leave the Southern Gate a second time, the player will enter Glitch City. Such a hidden location can be quite frightening to the younger players. Trees can't be cut down, the signs cannot be read, and doors don't work here.

10 Mr. Psychic's House

via: azurilland.com

Saffron City is another big location within the Kanto Region, the second largest city in terms of population next to Celadon City. Although Saffron City isn't a hidden location (that would be silly), a secret house within the city can help the player learn some new and more powerful moves. It's a small house that can be found on the South-Eastern part of the city. Inside the house, there is a man sitting at a table. He is Mr. Psychic. He claims to have read your mind and that you, the player (or Red) would like to receive a gift from him. This said gift is a TM move that wreaks havoc in Generation 1.

It's TM29, also known as the Psychic attack move. Like it was mentioned in a previous article, Psychic-types in Generation 1 were incredibly overpowered; Mewtwo helped illustrate that. They were virtually deities. Ghost-type moves never worked against them, and the Bug-types of Pokémon Red, Blue, and Yellow were incredibly weaker. The only way to defeat a powerful Psychic-type was with another Psychic type. Players that would acquire a Psychic move would have a significant advantage early on and much more against their friends.

9 The Pokémon Police

via: knowyourmeme.com

The Global Police Agency in Pokémon are an interesting group that task themselves with investigating and arresting the cruel members of Team Rocket. They appear in each game and possess more of a role in Pokémon Platinum where you battle your way into Team Galactic's HQ alongside Detective Looker. If you keep up with the anime, Pokémon Generations' The Investigation, episode 17 is all about Looker.

In Pokémon Red and Blue, you'll be able to find a Global Police agent aboard the S.S. Anne.

If you find this guy in a hidden cabin within the S.S. Anne Ship, he'll tell you to hush up once you speak to him as he unveils himself to be a Global Police agent. The agent further tells you he's on Team Rocket's trail, obviously determined to stop them. These Global Police definitely gave way to what would become the International Police in the later generations, adding a unique sideline in the greater scheme of things within the Pokémon games. If ever you can spare the time, I recommend watching the Pokémon Generations shorts, they're definitely a nostalgic piece with some unique animation. The stories are quite well-constructed, and especially the one focused on Detective Looker.

8 Dontae's House

via: youtube.com

The vast majority of Pokémon players never felt the need to complete the entire Pokédex. Those of us that did needed to find ways with friends and family (and the wire adapter) to get the Pokémon exclusive to your specific game. If you're playing Pokémon Red, Sandshrew, Vulpix, Meowth, Alakazam, and Gengar aren't available in the game and only obtainable through trading. Moreover, if you're a Pokémon Blue player, Scyther, Electabuzz, and Machamp aren't obtainable in the wilds, either.

The Pokémon Jynx, however, isn't available essentially anywhere except at one specific location. If the player visits a man by the name of Dontae in Cerulean City, just by the Pokémon Center, he'll offer you a special Pokémon to trade. He'll only do so however if you can get him a Poliwhirl. You'll need to first catch yourself a Poliwag and then evolve it into a Poliwhirl. This can get kind of tricky depending on which game you have. If you can fish in Celadon City, you'll be able to catch one there. However, if you've got Pokémon Yellow, you'll be able to get one just off Route 22. Otherwise, you'll just need to evolve one. Those wanting to complete the Pokédex will need to do so, in order to fill that missing spot by the number #124.

7 Gone Fishing

via: youtube.com

There is a weird trick you can do in some hidden locations, or should I say statues throughout the Kanto Region. You'll ultimately get the very weak "Old Rod" from an NPC that only really catches Level 5 Magikarp, which are almost as useless as the Old Rod itself (unless you're training a Magikarp, in that case, your patience is to be admired). Only in Generation 1, you can use the fishing rods you obtain to fish... out of statues? Although you can't actually fish any Pokémon out of the statues (obviously), you can fish from a select number of statues within the game.

This includes predominately all the statues within Pokémon Gyms except for the Gyms of Saffron City and Cinnabar Island. The un-fishable statues include the ones located in the Elite Four rooms. This surprises me when I first faced the Indigo Elite Four. Given that you could fish in water, I expected some level 50 Gyarados around the water of Lorelei's Gym room. To my dismay, I would only get a message saying, "Looks like there's nothing here." Maybe the same could be said when fishing from the game's statues. If you ask me, that would have been a good way in finding a legendary Pokémon.

6 Getting A Way Out

via: serebii.net

The Escape Rope is a wonderful item that spans the entirety of the Pokémon saga. Its use has helped us on many occasions. Whether we've lost ourselves in the midst of a dungeon or a cave, surrounded by Zubats or demeaning Trainers, the Escape Rope was there for us to warp us to the last Pokémon Center we've visited to get us back on our feet, and if not, back to Pallet Town where we once lived. This can get pretty useful if ever you're stuck with low-health Pokémon and are afraid of blacking out. Trust me, I definitely used my fair share of escape ropes on Victory Road.

There's a cool trick that can be done to get your hands on a free Escape Room while playing Pokémon Red or Blue. After completing all that needs to be in Vermillion City, you head out on Route 11 into a grassy field, filled with ready-to-battle Pokémon trainers. Once you reach the gate that opens up your travels to Route 12, check out the tree that's isolated right over the way towards Route 12. Once you do so, you'll find yourself an Escape Rope to be used anytime and anywhere!

5 The Dokokashira Door

via: youtube.com

According to our source, "dokokashira" in Japanese literally means, "where is it," but can be best translated with, "where does the other side of the door lead to?" What this glitch does it that it sends players who enter supposedly a Pokémon Center and then ending up in the midst of the burned-to-the-ground Cinnabar Island Laboratory. Getting to this location can only be performed in the very original Japanese versions of the Pokémon Red and Green games.

To commit to this glitch, you'll need to start a new game and carry around Oak's Parcel. By changing its place in your inventory with your starter Pokémon, you'll be able to activate the glitch. Now, with every 4 steps taken in the game, every door in the game will lead to another area. This glitch can even lead you straight to the Hall of Fame Room, after having fought the Indigo Elite Four, thus giving you the ability through a glitch to finish the game without the need of fighting the gym leaders, beating your rival or even catching any Pokémon. This glitch would have come really in handy for North American speed-runners, but alas, as we mentioned before, the glitch is only capable of being done in the early Japanese versions of Red and Green.

4 The Trees

via: screenrant.com

HM01 is a useful, yet annoying HM move that needs to be learned to get across the greater portion of the early game. Especially if you want to clear the whole game and finding those tricky items, just like HM02, Cut is the move you'll need. Those trees always seemed daunting to me. They didn't even look like real trees. They were nothing more than shrubs with two bushes on branches; insulting, more than anything.

There's a small, yet funny trick you can do to get back at those pesky trees. If you cut the trees, it'll give you access to some secret rooms or items. However, if you stand in the area where the tree once was, save, and reset the game, you'll be standing on top of a newly grown tree. This happens because the game engine doesn't collect information on which tree was cut. So every time you'll open your Game Boy (or emulator) you'll find yourself having to cut the same trees if you'll want to return to certain areas you've visited before. There you can cast your eyes on the wonderful 8-bit world of the Kanto Region!

3 The Invisible PC

via: youtube.com

There's a handful of Pokémon throughout the games that can turn invisible according to their abilities. Such Pokémon would include most of the Ghost Types, especially Gastly and Shuppet who would go invisible in games like Pokémon Ranger. In the third Generation games (Ruby, Sapphire, and Emerald), Kecleon acts like an invisible roadblock. Mewtwo (obviously), and of course Latios and Latias. The same can be said for a certain PC in Celadon City. If you walk in the South-Western part of the city towards the Celadon City Hotel, you'll find yourself in a building that appears much larger than it does on the outside, which is already weird, to begin with.

Makes you wonder what else is invisible...

If you walk to the farthest point of the building to the right and then move up a couple spaces, you'll find yourself blocked. If you inspect what it is and press 'A' you'll find a PC menu open up on the top right-hand corner of the screen. This can be quite useful if ever you're in need of a PC and no one's close by, or to make you feel smug, or even if you're just downright lazy, either way, a PC exists there and can be used just as well as a visible one.

2 That Truck

via: aminoapps.com

You knew we couldn't do this list without including the infamous truck. It was a weird addition to a good game with a bland environment. Off the docks of the S.S. Anne, you'll find a pickup truck parked just on the side. It was a largely distributed myth that if you had a Pokémon that had the HM move "Strength" they could move it and under the truck would come out the Legendary Pokémon, Mew. This area was only really accessible through a glitch caused by a GameShark. Players would need to walk through the ship's crewmate and then use a Pokémon with the move "Surf" to reach the side of the pickup truck.

Sorry, everyone. Mew was never under the truck.

It's an admirable attempt, yet it won't do anything to the disappointment of many fans and players. Many tried to find a variety of ways to get the vehicle to move to find and most importantly catch Mew, but alas it was just another pipe dream to locate Mew. It's become the common notion that this specific truck and the quest to find Mew was what set the Pokémon games and the aspect of, "gotta catch 'em all" to the popularity its achieved today.

1 Flying Away Home

via: youtube.com

After leaving Pewter City and making your way through some treacherous landscape, an infested forest, and defeating annoying trainer after annoying trainer, you're eager to find a new and faster way to get around as you check your map. Luckily, rather earlier on in the game, you'll find yourself on Route 16, where you'll notice a cut-able tree.

Without Fly, the game becomes much, much more tedious. Highly recommended, indeed.

If you have a Pokémon with the HM move Cut, you can get through. Once inside the hidden area, you'll find a lonesome house in the middle of nowhere. A woman inside with act quite surprised to see you randomly enter your home (as one should be). In her surprise, she'll ask you to not reveal her secret location. In exchange, she'll give you HM 02; the move, Fly. This allows winged or Flying-Type Pokémon the ability to, in fact, fly. The advantageous part is that players can use this ability to fast-travel across the Kanto region, facilitating the need to travel city to city, in the case where you forgot an item or need to catch a location-specific Pokémon.