Team Buddies (PSX)

Destroy Base
Get all of your buddies and send them to an opponents base. Then face the base, while doing this hold down L1 and R1 at the same time until the base turns red and has a arrow and sword pointing to the base. All of your buddies will start attacking that base until destroyed.

Climb Steep Hills:
When you want to get up a steep hill, get a cyborg and hold the Jump button. Press in the direction of the hill you wish to climb, it takes a while but can be useful.

Cheat codes:
To activate the cheats, pause the game then hold R1 + R2 + L1 + L2 and press one of the following codes:
Note! Once you've finished the level, the cheats are disabled.

Invincibility	X, Triangle, Square, Circle
All levels and worlds	Triangle, Circle, Square, Square
Level skip	Circle, Square, X, X
Unlimited ammo	Circle, Square, Triangle, X
Refill team health	Triangle, Triangle, X, X
Refill team ammo	X, X, Triangle, Triangle
First special weapon	Triangle, X, X, X
Second special weapon	X, X, X, Triangle
Heavy weapon	Triangle, X, Square, Square
Rocket boots	Triangle, Square, Square, Triangle
Jetpack	Square, Square, Triangle, Triangle
All crates powered-up	Circle, X, X, Circle
Instant shape building	Square, Square, Circle, Circle
Big feet	Triangle, Square, Square, X
Big guns	Triangle, Circle, Circle, Triangle
Base indestructible	X, Triangle, Triangle, X
Easy gun build	Circle, Circle, X, X
Easy buddy build	Circle, Circle, X, Circle
Animals do not attack	Circle, Square, Square, Circle