At first I didn't understand how the game worked (I didn't read the instructions, forgive me please). Maybe if you put those instructions inside the game it would help undersanding it.
That aside. DAMN, this game is incredible. At first I didn't understand it but once I did I couldn't stop playing. It's pretty addictive! The mechanics and the concept are truly interesting! It's challenging but, in my opinion, the difficulty of the game is perfectly balanced.
Nice selection of sound effects and music though!
I had a really good time with this game! Keep the good work!