Unlock Arcade Mode
Input the following cheat code as your name: EDACRA.

Unlock Super Agent Mode
Input the following cheat code as your name: SUPERSPY.

Erase High Scores
At the copyright screen, press Up, Up, Down, L, R, L.

Erase Saved Games
At the copyright screen, press Left, Left, Right, Left, R, R.

Go to: Spy Hunter Info Page | nGaming Home Page.