Baby Crash costume - Collect all the Die-O-Ramas to unlock the Baby Crash costume.
Chicken heads - At the main menu, hold L + R and press A, X(2), B. If you entered the code correctly, you will hear a soft sound.
Control loading screen - At the loading screen, press A to burp or X to fart. Hold the Analog-stick Up or Down while pressing A or Y at the loading screen to fart or burp differently.
Disable HUD - At the main menu, hold L + R and press A, B, Y, X. If you entered the code correctly, you will hear a soft sound.
Easy coins - Drink a Whumpa Whip and let a Ninja Penguin attack you. Then, pick up your coins.
Easy wins - In the Deep Sea circuit, have Nina and Crunch together in Nina's car. You will go very fast, and Crunch's machine gun can take everyone down to the ground. Additionally in Two Player mode, select which player is the best shooter and which is the best driver. At the beginning of the race have the best shooter not move, and turn into Clash mode. Have the best driver run into the best shooter and they will clash. During the entire race, just go around shooting people to win and get a lot of points.
Evil Crash costume - Find Cortex on Mystery Island, and behind him should be an owl-shaped lamp. Use the body-slam switch to raise the lamp, then enter the revealed cave and go to the right. Talk to the drone at the top of the small island to get the Evil Crash costume for 2,000 Coins.
High Speed mode - At the main menu, hold L + R and press X(2), Y(2). If you entered the code correctly, you will hear a soft sound.
Japanese Crash - At the main menu, hold L + R and press B, X, B, X. If you entered the code correctly, you will hear a soft sound.
One-hit knock outs - At the main menu, hold L + R and press A, X(2), A. If you entered the code correctly, you will hear a soft sound.
Play as Crunch Bandicoot - Give Crunch Bandicoot 2,500 Coins at Midway to unlock him.
Play as N. Gin - Give N. Gin the Green Plutonium at Midway to unlock him.
Play as Nina Cortex - Giver Nina Cortex the keys at Midway to unlock her.
Play as Pasadena Opossum - Give Pasadena Opossum one Power Crystal at Midway to unlock him.
Play as Von Clutch - Give Von Clutch one Power Crystal at Midway to unlock him.
Second tier kart weapons - Spend 500 coins at Midway to buy the following character's second tier kart weapon from them: Coco, Crash, Crunch, N. Cortex, N. Gin, Nina, Pasadena, and Von Clutch.
Skeleton Crash costume - Talk to the Astro Land worker near the stunt arena to get the Skeleton Crash costume for 4,000 Coins.
Third tier kart weapons - Spend one Power Crystal at Midway to buy the following character's third tier kart weapon from them: Coco, Crash, Crunch, N. Cortex, N. Gin, Nina, Pasadena, and Von Clutch.
Toy block cars - At the main menu, hold L + R press X(2), Y, B. If you entered the code correctly, you will hear a soft sound.