Homing laser in Galaga '88
Hold L1 + R1 + Select + Triangle + Down as the PlayStation is powered on. By keeping these buttons pressed, a perfect score can be obtained in Galaga '88.
Two player-link with one game disc
Load the game on PlayStation 1. Open the lid and remove the game disc. If desired, an audio CD can be placed in PlayStation 1. Load the game on the PlayStation 2. The "2P-Link" option should be displayed. The game by default loads the first track into memory, and has it available for racing. To play any other track, select and load the track by starting a race, waiting until the track is loaded, and aborting the race on PlayStation 1. Then, start the game on PlayStation 2.
Alternate track and car appearance
Press Up, Down, L1 or R1 in the car select menu and the course select menu to change the appearance of the cars and tracks. Press L2 or R2 in the car select menu to change the direction the tires are facing.
Small cars
Use the "homing laser" cheat to clear the Galaga '88 game with a perfect forty shot game. Small buggy versions of the cars may be raced, with a child as commentator.
Extra cars
Shoot all the ships during the Galaga '88 loading game (a perfect score is not required), to chose from eight additional cars.
Secret cars
Finish first in each track (novice, advanced, and expert), then return to race each track in Time Trial mode. After beating each track, the special car (Devil #13, Kid Car #13 or White Angel #0) for that track will be available.
Extra tracks
Finish all the tracks in first place to race a reverse version of the tracks. Finishing the reversed tracks in first place also unlocks the hidden "Scene" menu.
Reversed tracks
Start the race, then immediately turn around and drive towards the wall at the starting line at full speed. A reversed version of the track will appear after your car passes through the wall.
Toggle rear-view mirror
While racing with an internal view, press Start to pause the game. Hold Triangle + L1 or R1 to make the mirror disappear and reappear.
Zoom in or out
While racing with an external view, press Start to pause the game. Hold Triangle + L1 or R1 to zoom in or out. Press L1 + R1 to reset to the default view.
Spinning zone
Highlight the "Select" option on the title screen. Hold Square + X and press Start to choose the game options. Highlight the "Start" option on the menu while continuing to hold Square + X. Press Select, and hold all three buttons to start the race. Keep all buttons held until the race is about to begin. The phrase "Spinning-Zone" will appear to confirm correct code entry. Complete some stylish 360 degree or greater spins on some of the harder corners. Each spin will be rated from 0 to 100, and your final score will be shown in the Replay.
Endings
The game has twelve endings depending on which combination the tracks were raced. Racing in Advanced, Expert, Novice order has a different ending than racing in Novice, Expert, Advanced order.
Control the spotlight
Hold R1 + R2 and use the D-pad to move the spotlight at the title screen. Press X to resize the spotlight.
Hidden message
Select championship mode, then enter "Other" and look for "Records". Do not have any custom records. Look at the names of the people. The message reads "REV YOUR ENGINE NAMCO".
Drive through cars
Go backwards around any track and aim at another car. You will drive through the other cars.
Scene menu
Get a score of 0 in Galaga '88 by allowing all forty aliens to pass by. The phrase "Secret Bonus" will appear. Appearance options such as "Normal", "Noon", "Evening" and "Night" may now be selected from a "Scene" menu.