You should add a update that makes it so you can clean up the messing of blood and paint, so you don't need to use a object of reset the level.
Also being able to change colors of objects, like the walls and basic objects would be very nice as well.
Very well made. When i got my, First Weapon i jumped at the zombie in the chair! This game as the most best graphics i have seen on kongregate games! Good job, well done hope you make a new one soon.
Also press Ctrl to crouch :)
It's in an iffy position, but yep it's going to happen :) old version: http://zanzlanz.com/MineBlocks2