At any point in the game, Hold Left-Shift and Right-Click while entering the following codes:
NOTE: "B3" means you have to press the mouse scroll-wheel button in.
Thanks to Revolution readers Ariel_Doom, TheLateApollo, and ~~fluid~~!
|X, X, F, E, TAB, F
||Get every Psychic Power
|TAB, E, E, X, SPACE, B3
|B3, SPACE, TAB, TAB, F, X
||Infinite Psi Blast
|SPACE, B3, B3, E, F, Left-Click
|B3, X, E, E, TAB, F
|TAB, B3, TAB, E, X, E