Action Replay codes:
Invulnerability - 00C470:FF
Infinite Lives - 00C46F:09 -Rune
Max Basket "One's" Digit - 00C4BD:09 -Rune
Max Basket "Ten's" Digit - 00C4BC:09 -Rune
Detach Some of Yogi/Boo Boo's Head - 00C000:5A -Rune
Detach Yogi/Boo Boo's Head - 00C004:4D -Rune
Detach Yogi/Boo Boo's Rear - 00C008:67 -Rune
Detach Yogi/Boo Boo's Front - 00C00C:67 -Rune
Can't Jump/Semi-Walk Through Walls - 00C101:D0 -Rune

Game Genie codes:
Invulnerability - 009-51B-19E