9 Full Video Games You Can Unlock Inside Other Games

2. An Atari Treasure Trove (Inside Various Call Of Duty Games)

For a franchise that helped pioneer twitch-reactions and entire lifebars depleting because you moved an inch the wrong way, Call of Duty doesn't feel like a game where you can take a breather.

And yet, spring-boarding off from Black Ops 1 including the full version of text adventure Zork, across Black Ops II, Infinite Warfare, WWII and 2020's Black Ops Cold War, we've been given access to a treasure trove of Atari classics.

Kicking off proper in Black Ops II, shooting the heads off all the mannequins in Nuketown 2025 in under two minutes unlocked a monitor where you could play Pitfall II, River Raid, HERO and Kaboom!

Next was the roundly despised (and genuinely overlooked) Infinite Warfare, where Pitfall 2 returned alongside River Raid 2, Chopper Command, Spider Fighter and more. Apology tour WWII fleshed things out to include 15 games in total, before Black Ops Cold War brought the trend full circle, giving you a full arcade to wander around in, as the campaign is set in the 80s.

The full list brought back staples like Pitfall and River Raid alongside Grand Prix, Boxing and others, essentially producing a greatest hits of a decade's worth of easter eggs, for everyone to enjoy.