If you can up the resolution but keep the 64x64 grid, would be awesome. I'd also recommend a start screen with game title. Great idea, pushing each other works really good :)
Hey, are you playing on Firefox? I've noticed that for some reason the game doesn't scale up in Firefox. If that's what you were saying about the resolution, try Chrome or download the game for your OS. (Also, if anyone knows of a fix for this, please let me know!) Thanks!