I have 2 secrets for Hangar 18. They are very useful for all modes.
1: In the openings on the walls, there are control panels. Blow them all up, and then the lasers guarding the portal at the UFO will open up. Look for the second portal at the top of the level, and go into it. You will end up on the UFO, blow up the glass dome, and you'll get the UFO weapon. Don't use it unless your on the UFO, or you'll kill yourself.
2: Before you go to the second portal at the top of the level, look for a second smaller UFO. Blast it until it blows up. Sweet Tooth will laugh, and you should get 7 Special weapon attacks.
The following cheats are Special Attacks that you can use anytime while playing the game--YOU DO NOT ENTER THESE IN PASSWORD MODE! Simply press the buttons very fast to activate the effects:
Freeze Missile - LEFT, RIGHT, UP.
Rear Fire - LEFT, RIGHT, DOWN.
High Jump - UP, UP, LEFT.
Invisibility - UP, DOWN, LEFT, RIGHT.
Go into Password Mode and enter one of the following passwords to activate the corresponding effect:
Play as Sweet Tooth - Left, Left, Left, Right, Right.
Play as Minion - Right, Right, Right, Left, Left.
Unlimited Specials - L1, L1, R1, R1, R1. *When you enter this password, start a game, then quit. When you start playing again, you will have unlimited Specials.
Unlimited Ammo - Triangle, Circle, Up, Right, Down.
More Powerful Weapons - Triangle, Circle, Down, Left, Up.
Ice Levels - Up, Up, X, X, Up.
Play in the Demo Level (Deathmatch only.) - Up, Up, Up, Left, Left. *After you enter this password, choose any level when playing in Deathmatch Mode. When you start playing, you will be in the Demo Level.
Play in the Warehouse Level (Deathmatch only.) - Square, Square, Square, Left, Left. *After you enter this password, choose any level when playing in Deathmatch Mode. When you start playing, you will be in the Warehouse Level.
Club Kid Level (Deathmatch only.) - Left, Left, Left, Square, Square. *After you enter this password, choose any level when playing in Deathmatch Mode. When you start playing, you will be in the Club Kid Level.
Invincibility - L1, Square, X, R1, Start.
No Health Pick Ups - Select, L1, Select, Start, Circle.
No Item Pick Ups - Select, Select, R2, L2, Start.
go to passwords and have the following.
Sweet tooth and Minion:
left,left,left,right,right and right,right,right,left,left
Save by memory card:start,start,start,start,start
pervert picture on flower power info:
At eygpt, There is a small tower in front of a primaraid.Shoot it and it will open the primaraid door. Go in And you will find and picture of a dog/wolf.shoot it and it will open.go in and jump towards left,right(one of them is the correct one)
you will teleport to on top of the primaraid.in front of it the is (eye).
At tokyo,you must go up alot of ramp and you will land on a big box.torbo your way or jump towards the front and get radar.
killing fan:at tokyo,there is a spot where an item is located, go there and shoot under the item(becareful not to drop in)it will crash and a death fan is there.Lure the others towards it.
push them in and they will die in there.