1. im stadium, u should make this blocks have some ground variation: (2.1.6; 3.4.1; 3.4.2; 3.4.5; 3.4.6)(http://i.imgur.com/PRwMWDE.jpg?1)
2. some new platform blocks with curves and some block with lights
3. some button in game or player page for activation keys, for people who have lost them