Rally-X Car
Achieve a score of 50,000 points or greater in the Rally-X mini-game and complete race PRO-18, then go to World Tour mode and you will recieve a message and movie unlocking the Rally-X special class car.
Unlockable Movies and Pictures Requirements
To unlock the Intro Movies for the other Ridge Racer games, as well as the Ridge Racers car artwork, you need to complete specific Tours as follows:
Unlockable How to Unlock
Machine Design Collection 2 Complete EX Tour 38
Machine Design Collection 1 Complete EX Tour 37
Rave Racer Arcade Intro Movie Complete EX Tour 36
Ridge Racers 2004 E3 Demo Movie Complete EX Tour 35
Ridge Racer 5 Intro Movie Complete EX Tour 34
Ridge Racer 4 Intro Movie Complete EX Tour 33
Machine Design Collection 3 Complete EX Tour 39
Credits/Ending Movie Complete PRO Tour 18

Pac-Man Car
Beat PRO 21 tour to unlock Pac-Man. You race him to his music. I beat him with the Bosconian EO Type-R. He stays on your tail with all his nitro so drive skillfully.
Soldat Crinale
Race 4 races against the Crinale in PRO 19 tour to get it. You have to be on your game with the drifting and nitros to beat him here.
Kamata Angelus
Unlockable How to Unlock
Kamata Angelus (a.k.a. Angel) Beat Pro Tour 20 "Angelus Duel"

Unlockables
To unlock the listed item, complete the corresponding tour. Bear in mind the tours span over three different types: Basic, Pro and Ex.
Unlockable How to Unlock
Class 2 ABEILLE Type-S Complete Tour 1 (Basic Tour)
Class 2 ESPERANZA Type-S Complete Tour 2 (Basic Tour)
Class 2 BISONTE Type-S Complete Tour 3 (Basic Tour)
Class 3 FATALITA Type-S Complete Tour 4 (Basic Tour)
Class 3 EO Type-S Complete Tour 5 (Basic Tour)
Class 3 RAGGIO Type-S Complete Tour 6 (Basic Tour)
Class 4 PROPHETE Type-S Complete Tour 7 (Basic Tour)
Class 4 FIERA Type-S Complete Tour 8 (Basic Tour)
Class 4 BAYONET Type-S Complete Tour 9 (Basic Tour)
Class 5 ABEILLE Type-S Complete Tour 10 (Pro Tour)
Class 5 ESPERANZA Type-S Complete Tour 11 (Pro Tour)
Class 5 BISONTE Type-S Complete Tour 12 (Pro Tour)
Class 6 EO Type-S Complete Tour 13 (Pro Tour)
Class 6 FATALITA Type-S Complete Tour 14 (Pro Tour)
Class 6 RAGGIO Type-S Complete Tour 15 (Pro Tour)
ASSOLUTO Type-R tune-up kit for the FATALITA and BISONTE. Complete Tour 16 (Pro Tour)
HIMMEL Type-R tune-up kit for the EO. Complete Tour 17 (Pro Tour)
SOLDAT Type-R tune-up kit for the RAGGIO. Complete Tour 18 (Pro Tour)
Special Class SOLDAT CRINALE ("Devil") Complete Tour 19 (Pro Tour)
Special Class KAMATA ANGELUS ("Angel") Complete Tour 20 (Pro Tour)
Special Class NAMCO PACMAN ("Pac-Man") Complete Tour 21 (Pro Tour)
Crimsonrock Pass Reverse Complete Tour 3 (Basic Tour)
Crystal Coast Highway Complete Tour 6 (Basic Tour)
Crystal Coast Highway Reverse Complete Tour 13 (Pro Tour)
Diablo Canyon Road Complete Tour 4 (Basic Tour)
Diablo Canyon Road Reverse Complete Tour 6 (Basic Tour)
Downtown Rave City Complete Tour 12 (Pro Tour)
Downtown Rave City Reverse Complete Tour 19 (Pro Tour)
Greenpeak Highlands Reverse Complete Tour 9 (Basic Tour)
Lakeside Parkway Complete Tour 3 (Basic Tour)
Lakeside Parkway Reverse Complete Tour 7 (Basic Tour)
Midtown Expressway Reverse Complete Tour 7 (Basic Tour)
Ridge City Highway Complete Tour 2 (Basic Tour)
Ridge City Highway Reverse Complete Tour 5 (Basic Tour)
Seaside Route 765 Reverse Complete Tour 4 (Basic Tour)
Silvercreek Dam Complete Tour 10 (Pro Tour)
Silvercreek Dam Reverse Complete Tour 13 (Pro Tour)
Sunset Drive Reverse Complete Tour 2 (Basic Tour)
Union Hill District Reverse Complete Tour 9 (Basic Tour)
KAMATA Type-Z tune-up kit for the FIERA. Complete Tour 22 (Pro Tour)
SOLDAT Type-Z tune-up kit for the RAGGIO. Complete Tour 23 (Pro Tour)
GNADE Type-R tune-up kit for the ESPERANZA. Complete Tour 24 (EX Tour)
KAMATA Type-R tune-up kit for the FIERA. Complete Tour 25 (EX Tour)
DANVER Type-R tune-up kit for the BAYONET. Complete Tour 26 (EX Tour)
AGE Type-R tune-up kit for the PROPHETE and ABEILLE. Complete Tour 27 (EX Tour)
AGE Type-Z tune-up kit for the PROPHETE. Complete Tour 28 (EX Tour)
GNADE Type-Z tune-up kit for the ESPERANZA. Complete Tour 29 (EX Tour)
HIMMEL Type-Z tune-up kit for the EO. Complete Tour 30 (EX Tour)
DANVER Type-Z tune-up kit for the BAYONET. Complete Tour 31 (EX Tour)
ASSOLUTO Type-Z tune-up kit for the FATALITA. Complete Tour 32 (EX Tour)
Ridge Racer Type-4 Opening Movie (under "View Prizes"). Complete Tour 33 (EX Tour)
Rage Racer Opening Movie (under "View Prizes"). Complete Tour 34 (EX Tour)
Ridge Racer 2004 E4 Movie (under "View Prizes"). Complete Tour 35 (EX Tour)
Rave Racer Demo Movie (under "View Prizes"). Complete Tour 36 (EX Tour)
Machine Design Collection 1 (under "View Prizes"). Complete Tour 37 (EX Tour)
Machine Design Collection 2 (under "View Prizes"). Complete Tour 38 (EX Tour)
Machine Design Collection 3 (under "View Prizes"). Complete Tour 39 (EX Tour)
Ending Movie (under "View Prizes"). Complete Tour 18 (Pro Tour)
Special Class New Rally-X Car. Achieve a score of 50,000pts in New Rally-X and complete Tour 18 (Pro Tour)

Ridge Racer SecretsMirror Mode
When you choose a course in single race or time attack mode, hold Select to play the level in Mirror Mode.

Unlimited Nitrous (Single Race and Time Attack only)
Hold Select and press OK on the Request Confirmation page.
Ridge Racer GlitchesPlaying multiplayer with one game
If you want to play Ridge Racer with other PSP players around you but you only have one copy of Ridge Racer, here's how you can do it:
1.Load up Ridge Racer on PSP number 1.
2.Create a game on Ad Hoc mode and wait in the lobby.
3.Take out the disk and put the game in another PSP, load the game and join the already created game.
4.Then start the game.
5.The PSP screens should now go into a black screen, after 2 or 3 seconds when the PSP stops reading the disk, take it out and put it back in the other PSP.
6.Now it should start to load up the game and after his loading is done and the track is loaded, take out the disk and put it into the other PSP and just wait till it's done loading.

Now you both will be able to play the game in multiplayer mode. This trick can work for more than two players and as the music in the game is read off the disk, only the player with the game inside their PSP will get the music playing in the background.