Algodoo

Improvement suggestions: Reduce the friction of the player/ground, so one can move by sliding too.

At the room with the slinging laser cross, try to realign it so one can actually avoid the laser while passing the room.

At the final room, try to design it so that one is warned right before the lasers spike down. You could use a box with similar time settings as the lasers and a small offset to make it act as a lamp(get's red when lasers are about to spike, turns black once they return)