Here are some cheats and tips for the game Kaido Battle 2: Chain Reaction.
All Record Challenge tracks:
Hold R1 + R2 and press Down, Up, Down, Up, Left, Right, Left, Right at
the Record Challenge main menu.
All normal Record Challenge cars:
Hold R1 + R2 and press Right, Left, Right, Left, Down, Up, Down, Up at
the Record Challenge main menu.