You should change the comment when you die. Make it into, "You didn't get the cheese. :(" Or something because saying "No cheese for you! ^_^" makes you look like a sociopath.
I hope you can make a secret smiley, Maybe an epic face smiley, If you've collected all of the smileys, and I mean, ALL. Block pack smileys, classic smileys, magic smileys, etc.
I have a tip for you guys, did you know using the WASD keys are more accurate than the arrow keys? Go try and compare yourself. For example, On the tunnels campaign the beginning with the boost wall is close to impossible with the arrow keys. But when you use the WASD keys you can get up there lickedy-split.
You should make a block filler so you can scale your blocks, they'll still look like a 1x1 block but it adds more. I get really bored of making things block by block and I'd rather make it easier so you can build better levels. Hit + if you agree. :)
 "Everybody Edits"){kind=icon}
 "Transformice"){kind=icon}
 "Samsara Room"){kind=icon}
 "Mutilate-a-Doll 2"){kind=icon}
 "Sugar, sugar 3"){kind=icon}
 "Cube Escape: Arles"){kind=icon}
 "Cool Story Bro"){kind=icon}
 "Earn to Die 2: Exodus"){kind=icon}