on second to last you have to jump against the stick that has de keys and it will tilt to your side, you just have to be skilled enough to catch the keys in the air, thats it, then just jump to get the other keys, easy really
There's a bug that needs to be fixed, many people have complained about the game freezer because of a critter out of the map. this has happened to me twice in levels between 60 and 80