WEAKNESSES ITEMS
Items-Capsules
Capsules are tubes located on particular boards. Within these tubes is Doctor Light's hologram. The tuibes increase your abilities.

ACCELERATION SYSTEM
Location: Chill Penguin
How to reach it: It's part of the stage, it can't be avoided.
Requirements: None
Ability: Sliding
PASSWORDS (In suggested order of play)
Stage Select 
4325
5852
1821

Storm Torpedo, Energy Tank
5717
1567
2418

Storm Torpedo, Fire Wave, Energy Tank
1367
1788
7548

Storm Torpedo, Fire Wave, Shotgun Ice, Energy Tank, +1 Health, Acceleration System
7826
8412
3538

Storm Torpedo, Fire Wave, Shotgun Ice, Electric Spark, Energy Tank, +1 Health, Acceleration System
3217
1628
6446

Storm Torpedo, Fire Wave, Shotgun Ice, Electric Spark, Rolling Shiled, Energy Tank (2), +2 Health, Acceleartion System
3723
5216
2264

Storm Torpedo, Fire Wave, Shotgun Ice, Electric Spark, Rolling Shield, Horming Torpedo, Energy Tank (2), +3 Health, Acceleration System
7886
4532
7448

Storm Eagle, Fire Wave, Shotgun Ice, Electric Spark, Rolling Shield, Horming Missiles, Boomerang Cutter, Energy Tank (2), +3 Health, Acceleration System

7886
6332
3418

All Weapons, Energy Tank (2), +3 Health, Acceleration System
2211
3568
8221

Everything (Master Code)
3673
2137
2484
HELMET
Location: Storm Eagle
How to reach it:It's located by a metal tower near the end. Climb up the metal tower and rather than jumping across to another flat, jump down. Use the
Requirements: None
Ability: Break certain blocks with helmet
BODY ARMOUR
Location: Sting Chameleon
How to reach it:It's located by the cave where bricks fall overhead. Infront of the cave either "Jump Dash" (jumping while dashing) to the cave roof or use the super powered Shot Gun ice to slide to the edge and then jump on the wall.
Requirements: Special Cannon, Shotgun Ice or Acceleration System
Ability: Reduces Damage by 50%
RYU'S FIREBALL
Location: Armored Armadillo
How to reach it: This is tricky. At the end of the Armadillo's stage, just before his room there is a ledge which has an energy capsule. You have to jump off of the cart at a certain time to reach this ledge. Grab the capsule and then exit. Repeat this three times, and then on the fourth time, a capsule is there. In the capsule there is Dr.Light dressed up as Ryu.
Requirements: Everything has to be acquired first, all 8 energies, and all items.
Ability: Destroys every enemy in one shot, bosses and all. You use it like you would in Street Fighter. Roll your finger from "down" to "right" then press "y" or whatever button is "shoot". It only works at full health, so if you get hit forget the power. It cannot be saved so if you turn the power off its gone.