This game was kind of boring. There was very little variety in the enemies and the environments were kind of bland. The levels had a large, expansive feel, which would be good if there was more to do. Basically, you spend a little bit of time stocking up on coins until you get 5 lives and then you have nothing else to do but to search for the gem as soon as possible. The boss level was a nice change of pace, but too little too late at that point. The game was also super easy, especially with the floating free-fall.
It's alright, but not a great game. It works, which is more than I can say for some games.