Hi, just try your game. Sample and fun :D
In my humble opnion:
The Sound Effects: are okay the jumping sound, the falling and the destroyed platform are all okay.
The Backgroudmusic: for me was a great choice, gives me the feeling/idea of a funny simple game.
My feeling about the game, when I first start I was very good, music, the design.
Ideas:
For the Basic: Moving Plateform, smaller plateform, speed plateform, one shoot plateform (you have all of this)
- Catching coins/points, some wind blow in the side too push you in different directions for example, sticky plateform (unable to move to the sides).
I cannot give much more ideias because I think this kind of game is keep it simple and challenging, or you got some kind of LVL's where you go for increase and hardcore game but if the game is called Infitiy Jumper is only to get one level and get the best score :).
Again just my opnion.