Enter these codes at the main screen:
Weapon Select -L2, R2, L1, R1, U, D, D, U

     To change weapons hold lie down, then press the change button
     Unlimited Continues -L2, R2, L1, R1, L, R, R, L 
     Movie Player -L2, L1, R1, R2, U, L, D, R 
     Bamboo Arcade - Pac Tank -R2, R1, R, L, L1, L2 
     Bamboo Arcade - Gyruss -L2, L1, L, R, R1, R2 
     SFX Browser -R2, R1, L1, L2, U, R, D, L 
     Extra Lives:L2,R2,L1,R1,DOWN,UP,UP DOWN 
     Stage Select: L2,R1,L1,R2,L,R,Circle,Square,R2,L 


Start at any level with this stellar select code:
At the title screen enter L2, R1, L1, R2, left, right, circle, square, R2, L2. This will bring up a menu with a list of all the stages.
Submitted By: Justin Ashley [jashley@new0vista1.com]