You are standing in a room and wish to reach a goal in a different room. The same is the case for your alter ego in a parallel universe. Can you  satisfy both your ego and your alter ego at the same time?

  • Number of puzzles: 30
  • Average play time: 1h
  • First published: Sept 2003 (original five mazes only)
  • Original:
  • Keyboard controls: arrow keys or WASD to move; [Z] to undo; [R] for restart.
  • Touchscreen controls: tap at the main menu; swipe to move; open the tab menu in the upper left to undo moves and restart.

Explore more of Erich's puzzles at: Puzzle Palace   
See also: The Erich Friedman puzzle collection - by pedroPSI

puzzle concept  - Oskar van Deventer - 2003
puzzlescript implementation - Matthieu Haller - 2021  
puzzle designs - Oskar van Deventer & Erich Friedman - 2003/2021

Rated 4.0 out of 5 stars
(2 total ratings)
Made withPuzzleScript
Tagsmaze, oskarvandeventer, PuzzleScript


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did not find any use of parallel universe (i reach level 6, and i give up cuz boring), it just no different as two player in same room

My eyes keeps hurting when I play the game.

I beat all 30 levels.  I love your games.  Please keep making more!