I've figured out a way to get guaranteed 32 sec on the bullet shooter headshot level. First I hang our in one safe spot until 17secs and then fly to another spot at 31. Works every time, but after that it's mayhem!
That's the way to do it, theres no other lol. It's a memory level. you stay at the right side, below, right next to the canon, and jump at 12, 18, 23, 28, 32. and also deal with the bullets that come back from the wall at 8 seconds and 25. Then is intensive rope jumping. not my favorite level but its a cool mini game.