Canjump

Canjump strips the platformer down to a single input: one button controls every jump a monster character makes across a run full of hazards and enemies. There's no run cycle to manage or direction to hold — timing your jump is the entire skill the game is testing.

That simplicity is deliberate. With only one button to press, Canjump plays the same on a keyboard, mouse click, or mobile tap, which makes it equally comfortable whether you're at a desktop or picking it up on a phone during a short break.

Because there's no margin for extra inputs to save you, the main thing that separates a long run from a short one is reading upcoming obstacles a beat before you reach them rather than reacting the instant they're on screen. Short, consistent taps tend to give more reliable jump height than holding the button down.

Canjump is a good pick if you like classic one-button arcade challenges where the goal is simply to beat your own best score — quick to learn, hard to fully master, and free to play instantly with no installation.