Ninja VS Ninja is an evolved battle arena fighter,
designed by Derek Evers, as an educational experiment, to learn enemy AI.
The game has been released on Google Play and itch.io, with 1-level and 3-level options.
In the game, the player controls the black ninja, as he attempts to hit the white ninja 5-times, before the enemy ninja hits the player 5-times.
The ninjas can be hit with either a close-range sword, or a long-range ninja-star-projectile.
Each time a ninja is hit, that ninja is sent back to starting position, and neither ninja can be hit again for a short period of time,
(displayed visually by a silver protection border). The game ends with a win or loss for the player.