This game is one of the worst in the history of gaming. The only possible reason to play this game is to achieve the insanely easy achievements. But if you're playing this for "fun", be warned, you will have to purchase the game because it will be shattered in less than 1 hour of game play.
I played this simply because it was listed as an easy 1000G game, I don't regret playing for the pretty quick 1000G, but it was a horrible experience doing so. All the mistakes you can make on a platformer, it's in this game, annoying horrible camera, bad jumping physics, hard to tell where you land, jumps that will make you rage quit, and absolutely horrible level design from falling platforms to moving platforms. Story is ok, but it gets really frustrating towards the end, don't want to spoil it, but one of the ending parts is completely unnecessary and annoying.
If you're playing for the easy 1000G, try it, it's not that hard, it's just the horrible design that makes it harder than it should be, but the game is like a band-aide, rip it off really quickly.