Go to the options and enter the V-Gallery to find a trailer for P.N. 03.

When you go through everything in 2,000,000 Leagues Under The Sea you will face a jet.
Drop bombs on its roof and deflect the missiles back at the jet to kill it faster.

When you are fighting Gran Bruce (the Boss of the Episode 3), he will sometimes spit out
garbage. In the garbage, you will see a Gamecube.

When you encounter the tank at the start of the episode, your punches and kicks will not
do much damage (not even in Slow Motion or Mach Speed). When it fires a large bullet at
you, go into Slow Motion and punch the bullet back at the tank. It will not destroy it,
but it will do damage to it.

When you first start Episode 3 (2,000,000 Leagues Under The Sea), you will start moving.
Press R for Mach Speed and press A to shoot much faster.

In Episode 2, you will see some billboards for topless bars. They have topless girls with
black stars over the middle of their chest.

Successfully complete the game in Adult mode to unlock V Rated mode.

Successfully complete the game in Kids or Adult mode to unlock the Viewtiful World FMV
sequence.

Successfully complete the game in Adult mode to unlock Sylvia.