I really like the graphics and art on this game!
I agree with some of the comments below, i can see you increase speed over time, but various obstacles (a different shape crab that kills you if you try and pick it up possibly?) and also an and goal would be great.
I found alot of the times i go to pick up a crab. it misses. even though im right on top of it?
But all in all, this does have potential!