Err... Copy much?
I hear this so called Gravity Game was around at one time, I didn't really know. But in addition this game is also be called a rip-off a VVVVVVVV, and retro game found about on the net.
Nice game and concept you made, but it worked twice before. Next time, spend your efforts on an original piece, not a remake, this is Newgrounds mind you, try for innovation? I will give you credit because the game was well designed, but designs are a dime'a'dozen now. And for tricky plat-formers with no plot or point other than the cheap achievement points, you really need an original mechanic. I don't care to play a game over again. Nice graphics tho!