Completion bonuses Finish 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).
Maximum abilities (Justice League Heroes) Pause the game and then hold: L + R and press Right, Down, Right, Down You will hear a sound when you enter the code correctly.
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.
Cheat for Invincibility *Justice League Heroes* Pause the game and then hold: L + R and press Left, Down, Right, Up, Left, Down, Right, Up You will hear a sound when you enter the code correctly.
20 shields Pause the game, then hold: L + R and press Up(2), Down(2) You will hear a sound when you enter the code correctly.
Bonus heroes -Justice League Heroes This list of characters can be unlocked by spending the listed number of Justice League of America Shields:
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
Unlock all costumes Justice League Heroes Pause the game and then hold: L + R and press Down, Left, Up, Right to unlock all costumes. You will hear a sound when you enter the code correctly.
35 random boosts (Justice League Heroes) Pause the game and then hold: L + R and press Left, Right, Left, Right You will hear a sound when you enter the code correctly.
Infinite Super Power (Justice League Heroes) Pause the game, now hold: L + R and press Down(2), Right(2), Up(2), Left(2) You will hear a sound when you enter the code correctly.
Alternate Outfits -Justice League Heroes The following costumes can be unlocked by spending the listed number of Justice League of America Shields:
· 
· 
· 
