One of two known cheats in the game is to access the credits without beating the game. For the console and arcade versions: Hold down the Start button during the demo. When Sarah is kicking Kage, the credits will begin to roll. Let go of the Start button and the credits will stop. For the PC version, do the exact same thing except replace the Start button with.
The second of the cheats in the game is to access a hidden character, the secret final boss, Dural. There are two different ways to do this - one for the arcade, Sega Saturn, and 32X version of the game, and one for the PC version of the game. For the console and arcade versions: beat Dural and see the credits twice. After beating the game, have Player 1 press the Start button and then select a character. Right after Player 1's character finishes smiling, have Player 2 interrupt by joining the game. If everything was done accurately, Player 2 will appear as Dural. For the PC version, simply press, , , , and at the character selection screen.