Under rating threshold (hideshow)
The game is interesting but you could use more objects/shapes to find. Plus, I found that you just put a black shape on a black BG. It's not a seeking game, it's a "adjust your screen brightness" game, meaning it's very hard to spot shapes just at lvl 2 (well, the last 2).
So, variety and better level design are some tips. However, it's still fun.