Spider-Man 2 The Sinister Six (GBC)

Infinite Health:
Press Up, Down, Right, A at the title screen.


Infinite Web:
Press Left, Down, B, Up at the title screen.


Level Skip:
Press B, A, Left, Down, Up, Right at the title screen.


Unlock Bonus Teddies Game:
Press A, B, A, B, Down at the title screen.


Unlock Nightmare Mode:
Press A, B, Select, Up, Right, Down at the title screen.


Web O' Death:
Press Down, A, B, A, A at the title screen.


Level passwords:

Level 2 after defeating Mysterio: MP!63C
Level 3 after defeating Sandman: PL851D
Level 4 after defeating Vulture: MM947F
Level 5 after defeating Scorpion: TS6!96
Level 5-2 after passing the level to fight Kraven: TS6!9G
Level 6 after defeating Kraven: LR6!9G