Cheat mode:
Press Left(3), Right(2), Left(2), Right(3), Left, Right at the main menu. A cheat selection will appear.

Alternate character color:
Press Y + X + B + A when selecting a fighter on the character selection screen.

View ending:
Set the difficulty level to ten and enable gore. Complete the game in one player mode to view the ending.

Hint: Diablo: Pulverizer:
Hold 1 + 2 then press Up, Down.

Hint: Sauron: Energy Shield:
Press 1 + 2 then press Down, Up.

Hint: Sauron: Energy Beam:
Press 1 + 2 then press Away, Towards.