Contra - Legacy of War [Model T-9507H]

Do all the next tips quickly at the title screen (the one with the 4 options). When well done, you will hear a sound telling you the tip is active.

FX Browser Mode:
Press: Y, Down, Up, L, R, Up

Movie Select Mode:
Press: Y, Down, Up, L, R, Down

Launch the First Hidden Game:
Press: Y, Down, Up, L, R, Left

Launch the Second Hidden Game:
Press: Y, Down, Up, L, R, Right

Infinite Continues:
Press: Y, Down, Up, L, R, R, L

Stage select Mode:
Press: Y, Down, Up, R, L, L, R

Weapon Select:
Press: Y, Down, Up, L, R, L, R
While playing, hold A+C while pressing Y to change your weapon (you can have them all)