Enter "HEDGEHOG0" as a name (but do not press ENTER) to enable cheat mode. The sound of an engine rev will confirm correct code entry. Press [Backspace] to return to the first letter of the name. Enter one of the following names to activate the corresponding cheat function. To enter more codes, do not press ENTER after the confirmation. Press BACKSPACE to return to the first letter and enter another code or any desired name. Note: The cheats may not be enabled in practice mode.