Hard mode

Successfully complete the game. Then, complete the game a second time using the cleared saved game file to unlock the Hard difficulty.

Sound Test

Successfully complete the game to unlock the "Sound Test" option.

Gallery

Successfully complete the game to unlock the "Gallery" option.

Item Gallery

Cheat mode

Pause the game, select "Options", then "Cheats". Enter one of the following case-sensitive codes to activate the corresponding cheat function:

Invincibility

Enter "everythingproof" as a password.

Infinite Ben10 Alien's energy

Enter "generator" as a password.

Full upgrades

Enter "herotime" as a password.

All ten aliens after Ben loses all aliens

Enter "primus" as a password.

Advance to next level cutscene

Enter "portal" as a password.

Big Smoothy

Enter "xlsmoothy" as a password.

Toggle HUD health and energy display

Enter "hud" as a password.

Cheat mode

At the "Bonus Content" menu, select the "Enter Code" option. Enter one of the following codes at the "Secret Cheat" screen to unlock the corresponding cheat option. Then, enable the unlocked cheat at the "Secrets" menu.

Invincibility

Enter Kevin, Big Chill, Swampfire, Kevin as a code.

Infinite Aliens

Enter Ben, Swampfire, Gwen, Big Chill as a code.

All combos

Enter Swampfire, Gwen, Kevin, Ben as a code to unlock all combos.

Level Lord

Enter Gwen, Kevin, Big Chill, Gwen as a code.

Ben 10 - Alien Force

Cheat Codes:
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At the "Bonus Content" menu, select the "Enter Code" option.
Enter one of the following codes at the "Secret Cheat" screen
to unlock the corresponding cheat option. Then, enable the
unlocked cheat at the "Secrets" menu.