Neo Contra.
19 Lives
Enter this at the title screen: UP, UP, DOWN, DOWN, L1, R1, L2, R2, L3, R3.
Gallery
Beat the game twice.
The Music Box
Beat the game once.
Weapon Set D
Beat the game once.
Weapon Set E
Clear first five stages w/ Rank A or better.
Weapon Set F
Clear first five stages w/ Rank A or better.
Extra Stages
Clear first five stages w/ Rank A or better.
Bill II
Clear stage 7 w/ Rank S.
Jaguar II
Clear stage 7 w/ Rank S.
Lucia
Clear game in 20 minutes or less on any difficulty.