Ah, AddictingGames. Presenter of many addicting games. Awesome. I found a sidescroller called "Effing Worms" in which you play as a giant worm

Who's out on a quest to feed. A lot. The humans don't like you. They want you dead. You don't want to die, right?
EAT THEM.
Lurk underground until you feel hungry, and come up to feed as a dramatic heavy metal soundtrack kicks in. forget yes.
This game is so satisfying. You're pretty much unstoppable towards the end of the game.
CLICKATIZE ME, CAP'N!As the game progresses, level up in size and speed and gain permanent upgrades to transform your little night crawler into a death-bringing vessel of pure, slimy power.