Interesting game. Although this is not explicitly stated I assume the gimmick here is that the "good" green boxes are to be avoided and you either want to kill yourself by throwing yourself off a ledge or into the "bad" red blocks. I got to level 5 but then it got too hard for me. Also when you fail a level you go back to the previous level, not sure if this is intentional.
Overall reminds me of the Karoshi Series