Nothing sepperates this tetris from the rest
1. Submit your games with an icon!
2. Display the level you are on. I noticed ithad points and lines, but no level.
3. Make the background guy appear to be in the background by giving it alpha transparency, or just lower the brightness. I was trying to avoid hitting him at first, looks like he's part of the game.
1. low file size. I like that because of my dial-up connection. Adding the above 3 things I mentioned, shouldn't increase the file size too much, just a couple kb.