The following are known Action Replay Codes for Toy Story 2: Buzz Lightyear to the Rescue on Nintendo 64 (N64).

Device Compatibility: Action Replay & GameShark

Always have Super Spin Attack
800A143C 0060

Infinite Battery Power
810BB4F6 000E

Have 99 Coins
800B22C6 0063

Infinite Lives
800B22C2 0005

Infinite Health
800B22BE 000E

Moon Jump (Keep pressing X)
800B22B4 0002

Have all 5 collectables
801C7E62 0005

Infinite Lives
0103D4C6

Always have Super Charge Laser
800A1290 0064

Infinite Energy
0104AAC6

Infinite Health
800B22BE 000E

Infinite Lives
800BB4FA 0009

Hold jump to fly
810BB4EC 0002

Have 99 coins
810BB4FE 0063