Different weapons can do different things, maybe they send you flying, like the RF missile, or go through walls, like the Electro blaster. Here is a list of the non-power up weapons: Dy Jazz Jackrabbit 2
Name: Blaster
Special moves: Unlimited ammo, Defalt weapon
Damage per round(non-power up): 1
Name: Toaster
Special moves: Constant fire, can destroy hard objects such as a turtle shell
Range: Short
Damage per round(non-power up): 1
Name: Freezer
Special moves: Stops enemies for a short period
Range: Long
Damage per round(non-power up/power up):0 if in Single player, 1 if evil ice is enabled in multiplayer (Plus only feature)
Name: RF Missile
Special moves: Can fire two at once, can be used to perform special tricks
Range: Medium
Damage per round: 2
Name: TNT
Special moves: Static, explodes after a short period of time, can be used to preform special tricks
Range: N/A
Damage per round: 1
Name: Electro Blaster
Special moves: Can go through walls, burns hard objects
Range: Long
Damage per round: 1
Name: Pepper Spray
Special moves: Can be shot in a diagonal line
Range: Long
Damage per round: 2
Name: Bouncer
Special moves: Can be bounced against a wall to attack enemies that cannot attack the player
Range: Medium-long
Damage per round: 1
Name: Seeker
Special moves: Will follow an enemy or opponent
Range: Medium-long
Damage per round: 1