-level 3
just patched it haha, seems i was later than you. i'll admit that was horrible puzzle design and anti-cheesing
-level 4
sorry, i suck at coding so this was the best that i could do. my original draft for that level (before i found the coding flaw) was to set up a "L" shape to clear 5 boxes at once, but that couldn't work due to my coding inabilities.