Ah, the weird world of Nickelodeon in the early 2000s. Angry Beavers, Rocko’s Modern Life, Aaahh!!! Real Monsters – the list is endless. Nickelodeon tried everything and the results were pretty crazy.

Read up on the latest Invader Zim TV Show News, Reviews and Features from the team at Collider. Please tell me you remember 'Dave the Barbarian' too. Short, fun, and sweet. The new collectibles are ...