SpiderMan 2: The Sinister Six - Invincibility

Invincibility

At the Title screen press Up Down Right A.

Level Select

At the Title screen press B A Left Down Up Right.

OneHit Kills with Web Ball

At the Title screen press Down A B A A.

Infinite Webs

At the Title screen press Left Down B Up.

Teddy Bear MiniGame

At the Title screen press A B A B Down.

Nightmare Difficulty Setting

At the Title screen press A B Select Up Right Down.

Level Passwords

Level 2 after defeating Mysterio MP63C
Level 3 after defeating Sandman PL851D
Level 4 after defeating Vulture MM947F
Level 5 after defeating Scorpion TS696
Level 52 after passing the level to fight Kraven TS69G
Level 6 after defeating Kraven LR69G