Fez Cheats - PC

Achievements (Steam)
A numbers game - Find the Counting Cube artifact.
Achievement unlocked - RTRTLTRTRTLTLTLT.
Cryptographer - Break the code.
Equal and opposite - Find an Anti-Cube.
Get a cube - Find your very first cube shard.
Haikus not epics - Find the Tome artifact.
Hexahedronaut - Collect all 32 Golden Cubes and 32 Anti-Cubes.
Kill screen - Get to the end.
Mightier than the sword - Find the Writing Cube artifact.
Phrenologist - Find the Skull artifact.
Sum total - Find ALL collectibles.
Warp zone - Reactivate all 5 warp gates.

Unlock Bonuses
First-Person View - Return to the Hexahedron in New Game+.
New Game+ - Complete the game.

Stereoscopic 3D
First, make sure that you collect all 64 cubes. Once you have done that, head to the Star Gate in the 32-cube room for a new ending. Once the credits roll, select New Game+ again from the main menu. Play until you reach the point where previously you received the fez and the sunglasses. This time, you'll receive a pair of stereoscopic 3D glasses, which automatically enable Stereoscopic Mode. You can disable the effect in the Settings menu, if you wish.

Moon Jump
Finish the game and start a New Game + adventure. In that mode, you can enter the following button combination any time you like to start flying:

[Up], [Up], [Up], [Up] + [A].