Ninja Defender is a fast-paced arcade game where you play as a ninja who can throw kunai. You must throw kunai up to destroy the monsters that are invading your dojo. You have to aim carefully and use your reflexes to dodge the enemies' attacks and collect power-ups. The game features pixel art graphics, simple gameplay, and various levels of difficulty.

You can also collect power-ups like: heath, kunai ....

The game features colorful graphics, catchy music and simple controls.