Activate the following cheats by pressing the corresponding sequences of buttons at the main menu:
CHEAT FUNCTION - CHEAT CODE Japanese Crash - Hold L + R and press SQUARE, CIRCLE, SQUARE, CIRCLE. One-hit knock outs - Hold L + R and press X, CIRCLE(2), X. High Speed mode - Hold L + R and press CIRCLE(2), TRIANGLE(2). Toy block cars - Hold L + R press CIRCLE(2), TRIANGLE, SQUARE. Chicken heads - Hold L + R and press X, CIRCLE(2), SQUARE. Disable HUD - Hold L + R and press X, SQUARE, TRIANGLE, CIRCLE.