Super Buster Bros. Level Select - Tour Mode
     At  "SELECT  GAME"  screen  highlight "Tour Mode". Press and hold
down on d-pad and press the X button. You can then select any stage.

Expert Mode for Buster Buddies (a.k.a. Pang! 3)
     Hold  down  both the L & R buttons while starting the normal mode
for 'Expert Mode'.


Extra Hidden Characters
On the Player Select Screen

Unlockable         How to Unlock
Play as Devilot    Highlight Morrigan on the player select screen 
                   and press Down on the thumb pad
Play as Akuma      Highlight Hsien-Ko on the player select screen 
                   and press Down on the thumb pad
Play as Dan        Highlight Donovan on the player select screen 
                   and press Down on the thumb pad

Extra Hidden Characters in Puzzle Fighter

Extra characters/Character variations

Unlockable         How to Unlock
Play as Anita      Hold L & R and choose Donovan
Play as Hsien-Ko's Talisman/Sister's spirit 
                   Hold L & R and choose Hsien-Ko
Play as Morrigan as a bat 
                   Hold L & R and choose Morrigan