World 1 - Level 8
Relay Race

Time is short on this level - however you can gain 30 seconds for every alarm clock you find and pick up.

Move Loof to the purple button, then Stinky to the yellow button, then Loof to the green button, and Stinky to the blue button. Now have Loof roll the boulder onto the green button, and collect the four alarm clocks to gain more time. Phew.

Use this time to build two paths for the fireballs. Since Stinky and Loof do not have one reflector that the other needs, you'll need to build a path across the lava as shown. Collect the coins and make your way back to the exit.