Survival mode:
Successfully complete the game in Street mode with all eight Mobile Suits.

Sound test mode:
Successfully complete the game in Street mode under the hard difficult setting with all eight Mobile Suits. Two new options will be unlocked in the sound menu.

Alternate colors:
Highlight a Mobile Suit then hold R1 and press Start at the selection screen.

Time Attack A mode:
Successfully complete the game in Street mode with four Mobile Suits.

Time Attack B mode:
Successfully complete the game in Street mode under the hard difficulty setting with all eight Mobile Suits.

Heavy Arms Custom:
Successfully complete the game in Street mode with Gundam Deathscythe Hell Custom to unlock Heavy Arms Custom in Versus, Time Attack, and Survival modes.

Master Gundam
Successfully complete the game in Street mode under the hard difficulty setting with Burning Gundam and Gundam Maxter to unlock Master Gundam in Street mode. Successfully complete the game in Street mode with Master Gundam to unlock it in Versus, Time Attack, and Survival modes.

Special moves:
Press Down, Forward + Punch + Kick.

Circle half way from down to where you are facing and press Triangle + Circle to use one of three specials.

Defeating Big Zam:
Use all three Sephika Tenkyoken at Big Zam. Watch out for the missiles, but try to fly away from the Big Zam. Use Burning Finger frequently, as it does a lot of damage. However you can not pull him up because he is heavy. The Gundam you aer using is the Burning Gundam. Win with Gundam Maxter to get Bolt Gundam.

Altron Gundam: Beam Trident Rush Attack:
Press Right, Down, Left, Right + Punch for the Beam Trident Rush Attack, which is not in the manual. Note: This assumes player is facing to the right.

Burning Gundam: Burning Kick:
Press Forward, Down, Forward.

Easy win:
When playing under the hard difficulty setting, most Mobile Suits are difficult to defeat in battle. Use a 99 second time limit to compensate for this.

Blocking the unblockable:
The following Gundams can block unblockable techniques such as Beam Sabers: Master Gundam, Wing Zero Custom, and any Gundam with a Bubble Shield (any two attack buttons). With Master Gundam, use his Master's Cross (Down, Away, Punch). With Wing Zero Custom, use his Bird Tackle (Down, Away, Kick) or his Rising Bird Tackle (Down, Forward, Down, Kick). This move can damage the opponent, unlike the Master Cross.