Xbox’s 20th-anniversary celebration is still going on. Yesterday saw the official launch of Xbox Cloud Gaming for Game Pass, and just before that brought a flood of old games back from Xbox’s vault thanks to backward compatibility. And now we’re finding out that all the 20th anniversary-themed merch that Xbox has been selling came with cool easter eggs.

We’ll start with the Halo Infinite Xbox Elite Series 2 controller that went on sale last summer. Fans have been getting their controllers over the past few days and have discovered that inside the box is a special code that unlocks a gun charm in Halo Infinite that looks exactly like the controller they just got. It even swings around when you’re using the grapple shot to get to high ground or even if you’re just reloading.

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There are more gun charms available in the Halo Infinite NERF guns, such as the MA40 or Bulldog shotgun. Both products come with codes for gun charms and NERF-themed weapon skins to use in Halo Infinite.

There are other surprises in store for those who purchase the 20th Anniversary Xbox Series X|S Controller. Shine a black light on the box and you'll see the original Xbox controller, affectionately known as The Duke. And inside the battery cover, you'll find Xbox head Phil Spencer's signature along with his gamer tag.

Remember that Halo Infinite Xbox Series X? Shine a blacklight on it and you'll see the Zeta Halo symbol.

There might be more 20th-anniversary easter eggs waiting to be discovered, so stay tuned.

In the meantime, Game Pass Ultimate subscribers now have access to Xbox Cloud Gaming in 25 regions (Brazil, you'll just have to be a little more patient). This means subscribers can access the Xbox Cloud to try out brand new games without having to download them. It also means you'll be able to join in and play with friends for a game you don't even own. It's the ultimate way to demo games and even lets Xbox One players try out Xbox Series X titles without needing to buy a brand new console.

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