Solo battles:
Successfully complete the game to fight battles with partners by yourself.

Special option:
Successfully complete the game two times to unlock the "Special" option in story 
mode. Use this option to replay any story mode battle.

Blue G Red:
Successfully complete the game four times to unlock a blue colored G Red. 

Crystal G Red:
Successfully complete the game five times to unlock a crystal G Red. 

Silver G Red:
Successfully complete the game six times to unlock a silver colored G Red. 

Wire Girl: Retract move:
Press X(2) to retract Wire Girl through anchor points.

Acceleration Ninja: Bonus attacks: 
Jump into enemies to give them extra damage.

Super jump:
Jump, then hold the Analog-stick Forward to dash in that direction. Jump, then 
hold the Analog-stick Forward again just before the dash or jump ends to prolong 
its effect. 

Neo G Red:
Successfully complete the game two times to unlock Neo G Red. 

Gold G Red:
Successfully complete the game seven times to unlock a gold colored G Red. 

Silhouette G Red:
Successfully complete the game eight times to unlock a silhouette G Red. 

Shadow Neo G Red:
Successfully complete the game nine times to unlock Shadow Neo G Red. 

Defeating Death Saucer:
When you face off against the Death Saucer (the giant flying saucer), put Neo G 
Red at the beginning of your force, preferably leveled up as much as possible. Get 
him on top of the Death Saucer somehow and continuously use his Neo G Crash 
technique (press X on the Death Saucer. This is an easy way to not only rack up a 
150-hit combo, but also to end the battle in about two minutes.

Easy wins:
When battling a Flame Dragon, Blizzard Dragon, or Cosmic Dragon using a Normal 
or Double Ninja, get a Power Boost and use it. Get directly underneath the dragon 
and continuously attack (press B). The dragon will not fall, but you can inflict 
massive amounts of damage in a relatively short time. Note: This does not work 
when battling a Plasma Dragon; it has lightning around its feet, which will simply 
blast you away. This has not yet been verified with the Cyber Death Dragon.

When battling any large Dragon type (Flame, Blizzard, Plasma, Cosmic, or Cyber 
Death Dragon) using Neo G Red, use the G Buster (hold B), then the Neo G Crash 
(X) repeatedly. The two attacks will keep you in generally the same area so that 
most of the attacks will hit. Note: The dragon may fall over using this technique.

The longest efficient combo with Neo G Red is to attack from the air (without 
dashing) with the Plasma Blade (B), then dive after your fallen enemy with the 
Neo G Crash (X), then chase them back into the air with another Neo G Crash (X). 

Never punch a Walking Bomb.

When using a Blue Striker or Orange Fighter, get a Power Boost, and use it. The 
rapid-fire Power Beam (hold B) can reduce a Cosmic Dragon to nothing in less 
than sixty seconds.

When using a Gotcha Borg that can transform, such as the Victory Machine, 
transform (X) quickly back and forth to quickly reload all of its weapons.
Note: This has only been tested using the Victory Machine, and simply assumed to be
true for the rest of the transforming Gotcha Borgs.

Better Shooting:
Enter "Excellent" as a code at the options screen.

Easy trick points on a Gamebreaker:
When you go up to dunk, make sure all your teammates are downcourt. Go up, 
hold all four Turbo buttons and rotate the C-stick until another teammate jumps 
up. continue this until all two teammates jump, and on the last player just let them 
dunk.

Easy biggie littles:
Hold all four Turbo buttons and the C-stick Up.

Biggie littles in Street Challenge Mode:
Defeat his team in the finals of the first tournament you are invited to at The 
Cage, NY.

Instruction manual spelling:
On the last page about where they show some of the borgs, the Cutter Ninja there 
is really the Shrunken Ninja in the game.