Very original puzzle game
I'm sure a lot of people already discussed how there's learning curve issues so I won't get into that.
However, once you learn how to play the game this game can be pretty fun. I stopped at lvl 19 and the levels up to that point were the perfect difficulty, not too hard so that you get stuck along time but hard enough that it felt rewarding.
The game is very original, major props for that. I only gave it an 8 though because it just did get too repetitive and a little boring. Levels became too complicated and required too much trial and error. The same music over and over didn't help either. This is typical of a lot of great puzzle games like Bolo and Lemmings but personally I would prefer more simple levels and not not like 75% of the game requiring you to think so much ahead or require you to lose 10 times before you beat the level. Maybe add in new enemies or objects to spice things up.