20XX is a roguelike action platform game developed by Batterystaple Games for the Nintendo Switch.
Inspired by Mega Man X, players must shoot or slash enemies and complete difficult platforming challenges to finish a stage. The twist is that these stages are generated randomly based on level segments, or "chunks", and also allow for both local and online co-op. Rather than giving you several lives, the game has permadeath, but is a "roguelite" in that you can use Soul Chips earned during the level to unlock new types of passive upgrades to buy, and gain upgrades for the next attempt of that particular run.
During levels players can use bolts gained as currency to buy passive upgrades, or to gain back health or energy in vending machines. They can also find upgrades in treasure chests and other places. Upon beating a boss the player can choose to take their power as a reward, granting them a new special ability, or take a reward of bolts or a random passive upgrade instead.
The game follows Nina, an armored girl armed with a power blaster, and Ace, an armored boy who has an energy sword, in the aftermath of a robotic uprising. Traveling from their base on the Ark, a space station orbiting the Earth, they have been hired to clear dangerous locations that are infested with robots that have run amok.