10 Second Ninja

10 Second Ninja is a fast game where Nazi robots from space attempt to rid the world of all ninjas. The player controls a single ninja and has ten seconds per level to destroy all robots. Levels consist of a small 2D environment with platforms and stationary, passive robots. There are also hazards such as spikes, gaps, crumbling platforms and slippery surfaces. The ninja can be moved around, (double) jump, and use a sword to slash. Three shuriken per level can be thrown to reach a robot from a distance. Levels are meant to be played multiple times to find the fastest way to destroy the robots.

Even though ten seconds is the bare minimum, much faster times are needed per level to unlock up to three stars. These stars are used to keep unlocking new levels grouped in five main environment such as Forest, Canyon, Ice, Deathcube etc. Each environment ends with a boss fight against Robot Hitler. There are 40 levels in total and global leaderboards to compare the fastest times.