Level 43: LOCK BLOCK (UJDP) - Chip's Challenge

Jaime C. Villacorte: Relatively simple level. Grab the key on the right side first. Hardest part is running past the blue ball using the force floor. Wait until the ball just started its rightward movement then jump on.
Richard Field: Go right and get the red key. Pick up the fire boots and the blue key. Unlock the blocks and build a bridge. Go left and get the second red key and build another bridge. Beat the ball to get the third red key and go back to unlock the third set of blocks. Build a bridge, get the red key, build another bridge, and exit!