[Printable Version] 

Spyro Party USA: Hold L+R and turn the console on -or- insert SW1NGS3T at the Cheat Menu.

Note: The following cheats are entered by pressing L+R at the Mode selection menu, and by entering the respective code in the Cheat Menu.
Thanks to fakecortex for this complete list:

SW1NGS3T- Spyro Party USA.
CR4SH- 100 Wumpa fruits, can use only once per save slot.
G3CK0- 200 Wumpa fruits, can use only once per save slot.
C0FF33- 500 Wumpa fruits, can use only once per save slot.
STR4WB3RRY / SVNB1R- Toss bombs by pressing R, will revert upon reset.
WH1STL3- Hidden card: Mayan Jungle.
PH0N3T4G- Hidden card: Sewers.
L4MPP0ST- Turns entire game orange, will revert upon reset .
WVMP4FR00T / C0L1N- Turns entire game purple, will revert upon reset.
PR3S3NTZ- Turns entire game gray, will revert upon reset.
TR4V1S- Turns entire game gray, can also toss bombs by pressing R, will revert upon reset.
CVTZ- View all cut scenes.
ST4CY / J0NNY- Turns Crash's pants black, can also toss bombs by pressing R, will revert upon reset.
K1LL4Z- Turns Crash's pants green, can also toss bombs by pressing R, will revert upon reset.
J45S0N / C4M0- Turns Crash's pants green, will revert upon reset.
BR3NT / R0BG- Turns Crash's pants orange, will revert upon reset.
CR3D1TS- Alternate way to view credits.

Unlockable Mini-Games in Party Mode: The following mini-games need to be unlocked by collecting a number of cards:

- Jump, Crash, Jump!: 25 cards
- Cold Front: 50 cards
- Hot Feet: 75 cards
- Moat Monster: 100 cards
- Wumpa Jump: 125 cards

Unlockable Characters in Multiplayer Mode: The following characters can be unlocked for Multiplayer games by collecting their respective red cards: