Justice League Heroes - Cheat Mode

20 shields:
Pause the game, then hold L R and press Up2, Down2. If you entered the code correctly, you will hear a sound.

35 random boosts:
Pause the game, then hold L R and press Left, Right, Left, Right. If you entered the code correctly, you will hear a sound.

All costumes:
Pause the game, then hold L R and press Down, Left, Up, Right to unlock all costumes. If you entered the code correctly, you will hear a sound.

Alternate costumes:
The following costumes can be unlocked by spending the indicated number of Justice League of America Shields that can be collected throughout the game:

Batman classic blue: 59 Shields
Batman Batman Beyond infiltration suit: 74 Shields
Flash Jay Garrick: 21 Shields
Flash Walter West: 48 Shields
Green Lantern retro: 23 Shields
Green Lantern bold: 30 Shields
Martian Manhunter modern: 29 Shields
Martian Manhunter true: 15 Shields
Superman black recovery suit: 32 Shields
Superman Earth 2: 65 Shields
Superman Kandor: 91 Shields
Wonder Woman biker: 61 Shields
Wonder Woman toga: 44 Shields
Zatanna classic blue: 25 Shields
Zatanna Identity Crisis: 38 Shields

Bonus heroes:
The following characters can be unlocked by spending the indicated number of Justice League of America Shields that can be collected throughout the game:

Aquaman: 27 Shields
Green Arrow: 76 Shields
Green Lantern Hal Jordan: 84 Shields
Green Lantern Kyle Rayner: 55 Shields
Hawkgirl: 70 Shields
Huntress: 53 Shields

Completion bonuses:
Successfully complete the game to unlock the Continued Play option, which allows a new game to be started with all previous stats and items, and an alternate main menu background with characters from the game

Fast health recovery:
Upgrade your health recover and the strongest weapon for the character you are currently using. For example, upgrade the Flash's Whirlwind ability or Wonder Woman's Tiara throwing ability with Damage and Duration boosts. All the characters lose health quickly to most any kind of attacks. It is recommended to have a fast recovery of health. Use the Speed Boosts in all the recovery slots.

Infinite Super Power:
Pause the game, then hold L R and press Down2, Right2, Up2, Left2. If you entered the code correctly, you will hear a sound.

Invincibility:
Pause the game, then hold L R and press Left, Down, Right, Up, Left, Down, Right, Up. If you entered the code correctly, you will hear a sound.

Maximum abilities:
Pause the game, then hold L R and press Right, Down, Right, Down. If you entered the code correctly, you will hear a sound.