up
left
right
down
retry
You Win!
Pick a level.
Level 1: Intro
Level 2: Simple
Level 3: Doors
Level 4: Portals
Level 5: Doors AND Portals
Level 6: One-Way Portals
Level 7: Invisible Walls
Level 8: Many Doors; One Key.
Level 9: Invisible Walls AND Portals
Level 10: More Invisible Walls AND Doors
Level 11: Comprehensive Test
Level 12: Keys are a Commodity
Play