Unlimited health:-  Hold L + R and press Up, Right, Up, Left, Down, Left, Down, Right at the starting screen with Batman and Sin Tzu standing side by side. A message will appear to confirm correct code entry.

Unlimited combo meter:-  Hold L + R and press Left, Right, Down, Up(2), Down, Right, Left at the starting screen with Batman and Sin Tzu standing side by side. A message will appear to confirm correct code entry.

All upgrades:-  Hold L + R and press Down, Up, Down, Left, Down, Right, Up, Down at the starting screen with Batman and Sin Tzu standing side by side. A message will appear to confirm correct code entry.

All bonuses:-  Hold L + R and press Left, Down, Left, Right, Left(2), Down, Right at the starting screen with Batman and Sin Tzu standing side by side. A message will appear to confirm correct code entry.

Dark Knight difficulty setting:-  Hold L + R and press Right, Up(2), Right, Left, Down, Right, Up at the starting screen with Batman and Sin Tzu standing side by side. A message will appear to confirm correct code entry.

Making Of Sin Tzu:-  Defeat Sin Tzu at the end of the game.

Alternate costume:-  Successfully complete the game under the easy difficulty setting.

Defeating Scarecrow:  Scarecrow is a master of fear, and can create a chemical to heighten it. Actually, in this battle, he has very few attacks. You start off in a gas-filled room. You will see ghost-like things flying around. ONe hit will kill them. Look at the blue gas surrounding the room. Notice that the gas seems to part in some areas, and you can hear footsteps. Run around, rolling where the gas clears. If you are lucky, Scarecrow (who was invisible), will appear. Then, beat him up and repeat.

Defeating Clayface:  This Boss is made of clay, and can be difficult. He has several attacks. If you get too close, he makes a brick wall out of his chest then rams it at you. He also can turn his arms into sledge hammers of razor blades and lunge at you. The trick here is to dodge until the lights turn green on the pipe-like electricity things on either side. Then, throw a Batarang at both as fast as you can, or hit them. The electricity will activate, and Clayface will get shocked. Go up and attack him. When he gets back, run to the far side. He will probably launch some kind of muck thing at you, which produce more muck monsters. Beat them up, then repeat step two. After a few hits of electricity, dodging the attacks, you will win.

Defeating Bane:  Bane is very strong, but lacks IQ. Unfortunately, he starts off invincible to your attacks. Stand back and wait for him to charge. Dodge, and he will be off balance. Then, beat him up. He will do the same, except now you have to make him run into a wall, hitting him. Unfortunately, this causes rocks to fall from the ceiling. Dodge them. Also, he will start using some kind of earthquake attack -- stay back if he is not advancing on you. After you beat him up, he will heal. Repeat the previous steps.

Defeating Sin Tzu:  Sin Tzu is immune to non-special attacks, and is very fast and powerful. Start by watching him run around. He will go into a series of four rushes. Dodge all four of them, and he will backflip. Hit him then. Repeat, but do not stay around to long, until you get a full power meter. When he backflips, hit him with a power attack. Do this for awhile. He will then run into his tower and summon enemies. Beat them up. Meanwhile he will be recovering health and shooting fire at you. After defeating his allies, get your power meter back up and repeat the previous steps. He will now occasionally go into a super-nova attack. Block it at all costs and repeat until he is defeated.