Kamen no Ninja Akakage (Famicom)

Yay! It's one of those games you can actually pick up and play, even if you don't speak Japanese. 
This one is an action-platformer, based on a forgotten anime. It's quite fun! 

Please note this is the Japanese version of the game, which requires a Famicom, a converter or a multi-region system to play. 

Condition: Good. Unfortunately someone wrote on the back (but it's in Japanese, so it's a bit charming also).