There's already at least one Portal cartoon in production. That one, however, looks like something Dreamworks would come up with. If you'd rather a Portal cartoon look more like something Ren & Stimpy creator John Kricfalusi would dream up, though, you might want to take a look at these.
Kotaku · Luke Plunkett
Track: Sonny Bono Memorial Highway | Artist: Yawning Man | Album: Rock Formations
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