Gauntlet II

GO ON A DIET: You'll have to experiment with this one, either eat two or three foods only.
SAVE SUPER SHOTS: You have to leave the room with ten super shots - so collect time again - push either two or three moveable walls onto an exit or transporter and destroy them.
DON'T GET HIT: Easy enough - avoid being hit by monster's missiles.

Pause the game for three minutes and then press fire; all walls become exits.

Stand still and lose 30 health points and all of the doors in the current stage open. Or even better, if you stand still until you lose 200 health every wall in the level becomes an exit!