Complete the following missions and behold these new options as they wriggle out of your PC.
Mission 4 Laser sight
Mission 8 Jetpack
Mission 13 Fast walk
Mission 16 Invisibility in net games
Mission 20 Low gravity
Mission 25 Indestructible landscape
Mission 33 Super banana bomb power-up
And if you make Elite rank in deathmatch mode, your entire maggot army becomes invincible. Finally, earn a gold medal and Elite rank in all missions to get Full Wormage game options. Nice.