That's another plus to keeping Blockland out of ESRB. Surely for single player, they would make it E 10+ and older people won't get it.
If ESRB went nuts because Oblivion/Skyrim had a nude texture somewhere deep in the game files then the fact that Speedkart gamemode has a bloody explosion means Blockland would be T. Most certainly not E+. Oh yeah and the spray can label has a censored curse word so that might also do something.