Angry Video Game Nerd Adventures All characters and levels
Before the title screen appears, press Down, Left(2), Up, Right(2), Up, Down, Left(2), Up, Down, Up(4) to unlock all characters and levels.
Big Head mode
Before the title screen appears, press A, B, A, Y, A, B(2) to enable Big Head mode.
Blue screen of death
Before the title screen appears, press Up(2), Down(2), Left, Right, Left, Right, B, A to get an “error” screen. Press any button to return to normal gameplay.