Ninja Pipe Cleaner

Ninja Pipe Cleaner is a microgame in the Sci-Fi folder in WarioWare, Inc.: Mega Microgame$!.

Gameplay
There is a ninja running through a tunnel, and an enemy ninja in the tunnel. The player must move the ninja with the D-pad and run into the other ninja, slicing him with a sword. On level one, the ninja is stationary and easy to hit. On level two, the ninja is running, making it harder to get to him. On level three, the ninja is running, but occasionally squats, then runs again.

Trivia

 * The symbol that appears when the player slashes the enemy ninja means "kill".