Who's Left? is the 43rd level in Chip's Challenge Level Pack 3. It was created by David Knight. 321 route: Push the block 22D 10R D 5R, wait for the glider to bounce off it, then push it L, wait for the glider to bounce off it again (the blue button will have been pressed once), and push the block 9R 6U 2R 3U, wait for the glider to bounce off it, then push it L (wait for other glider to pass) R U, wait for the glider to bounce off it again (the red button will have been pressed once) and push the block 10U 8L 2U 2L, wait for the glider to bounce off it, and push it L. Collect the green key and push the block 10L 8D L 5D, collect the chip and yellow key, move the block 8D 12R, collect the chip and blue key, then use the block to bridge to the red key and teleport, from which the last chip