What

An antagonistic 1-button platformer. Difficult, but each level is technically beatable.
Made for the KusoJam, which has two other more charming entries you should definitely examine: https://itch.io/jam/kusojam

Controls

Controls are limited to one button. This is mapped to Unity's 'Jump' input. By default, this is the spacebar.

Tap 1x to move forward.

Tap 2x to jump.

Tap 3x to blow a kiss.

Tap 4x to do nothing.

Tap 5x to move forward fast/far.

Tap 6x to reset current velocity. (This is probably useless.)

Tap 7x to move backward.

Tap 10x to restart the level (-1 life).

Complications

Physics is non-deterministic: the same input/timing does not guarantee the same outcome.

Sometimes collisions will behave oddly.

While the one button is pressed, the screen goes dark.

After you have tapped, there is a small delay before input is read, just in case you wanted to tap again.

Levels may become increasingly disorienting.

Credits

This uses Thomas Hourdel's "Colorful FX" from the Unity Asset Store: https://www.assetstore.unity3d.com/en/#!/content/44845