All car parts
                Select 'Secrets' at the option menu and enter FUDWHC as a code.
             
                        
                All other cars (including bonus cars)
                Select 'Secrets' at the option menu and enter AIDLAU as a code.
             
                        
                All tests
                Select 'Secrets' at the option menu and enter DMLPOD as a code.
             
                        
                All tracks
                Select 'Secrets' at the option menu and enter BSDJUC as a code.
             
                        
                All Tracks (Bonus Code 34674)
                Enter the following code at the code entry screen: HCHSFD.
             
                        
                All Weather
                Select 'Secrets' at the option menu and enter CLRWTR as a code.
             
                        
                Bonus Code 76538 (Group B Mode and Cars)
                Use the following code: RTNITJ.
             
                        
                Expert Mode
                Select 'Secrets' at the option menu and enter HIQNRM as a code.
             
                        
                Expert Mode (Bonus Code 34674)
                Enter the following code at the entry screen: IRZQNT.
             
                        
                Group B mode and Group B cars
                Select 'Secrets' at the option menu and enter CFCKGL as a code.
             
                        
                Mirror Tracks
                Select 'Secrets' at the option menu and enter EPDZJF as a code.
             
                        
                Mirror Tracks (Bonus Code 34674)
                Enter the following code at the code entry screen: FEQRJV.
             
                        
                Various codes for an unknown bonus code
                All tracks: BSDJUC 
Expert mode: HIQNRM
All parts: FUDWHC 
All tests: DMLPOD 
Mirror tracks: EPDZJF