Balance an object on your head for 10 seconds.
Make 4 loops with the helicopter in succession.
Get hit in the head with a lavarock 5 times without using the tractor beam.
At the beginning of the game, find a way to submerge under water.
Finish the game by escaping.
Form a pentagram with the laser reflectors.
Pass the adjustable pumps without adjusting the pumps.
Finish game without using hints.
Some things are just way too heavy.
Sacrifice yourself at the end of Extended.
Save yourself at the end of Extended.