Nice
Pretty awesome game really. I ended up beating the game with every single character and getting all the medals. The controls were extremely frustrating for the first couple playthroughs, but like you said, there's a learning curve with them and I eventually got used to them like it was no big deal.
The sprites were designed well, and I liked the multiple different characters. The levels were interesting enough, but I supposed there could have been more levels and more elaborate ones too.
I noticed that even as the grasshopper in the jar you still see the grasshopper in the jar text though...you could have at least changed that.
The music was pretty good and I really liked the sound effects, so no complaints there.
The ending real ending is beautiful...every time you get it =) Overall a fun game with great replay value. Didn't find a single bug. Keep up the good work.