Click the green flag and use arrow keys OR WAD KEYS to toggle the player. There are totally 7 levels. 1 is not hidden. You should know wall jumping. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ VERY HARD - YOU WILL QUIT - It will approximately take 32.5 hours to get it right - IMPOSSIBLE
Credits ~~~~~~~~~~~~~~~~~~~~~~ @TOP-CODER I used @TOP-CODER permission yeah,, not really ;@TOP-CODER's my cousin so no biggie 0____0 ~_~ O_O