Kyonshiizu 2 (Famicom)

This is probably some of the worst cover-art in existence. And it does not give any clue as to what this game is about, which we simply couldn't figure out. 
We think it's an adventure games about... Ninjas? Or something like that? The pixel art is horrendous, so it's hard to tell. 

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. Label is yellowing on both sides.