Use any of these cheats at the corresponding spot to receive the desired effect:
Press Up, Up, Up, Left, Right, Left, Enter at the team menu or hero management screen. 100,000 Gold Coins
Press Up, Up, Down, Down, Left, Left, Left, Enter at the character select screen. All characters
Press Up, Left, Left, Up, Right, Right, Up, Enter at the Review menu. All Cinematics
Press Left, Right, Right, Left, Up, Up, Right, Enter at the Review menu. All comic book covers
Press Down, Down, Down, Right, Right, Left, Down, Enter at the Review menu. All Concept Art
Press Up, Down, Up, Down, Left, Right, Left, Right, Up, Down, Enter at the character select screen or the main menu. All costumes
Press Up, Right, Left, Down, Up, Right, Left, Down, Enter at the simulator terminal screen where you choose a Comic Book mission. All Courses
Press Left, Right, Left, Right, Up, Down, Up, Down, Left, Right, Enter at the character select screen or the main menu. All powers
Press Up, Down, Right, Left, Up, Up, Down at the Review menu. All Wallpapers
Press Left, Right, Right, Left, Up, Down, Down, Up during game play. Filler
Press Up, Down, Up, Down, Up, Left, Down, Right, Enter during game play. God Mode
Press Up, Left, Up, Left, Down, Right, Down, Right, Enter at the team menu. Level 30 team
Press Up, Left, Up, Right, Down, Right during game play. Super Speed
Press Left, Right, Down, Down, Right, Left, Enter during game play. Touch of Death
