It was pretty awesome, I especially liked Mr. Fixit, the Doom sequence, the PS1-style 3D and the characterisation of the Stinkoman enemies. But it felt a bit too short. :/ And Homsar got left out again!
The gag about repeating textures cracked me up (little buddy), because, as a level designer myself, that's something I have to deal with all too often.
Oh yeah: Homestar in the interface = win.

I loved it when he said "Hey! Listen!" and later on when he went all Metal Gear Solid.
Also, Extended Play was a bit of a let down, since there are no characters to interact with at all. And what was with that ending? I felt confused...
I dunno, now I've played all the episodes, I feel like maybe the order should've been like this:
-Homestar Ruiner
-Baddest of the Bands
-8 Bit Is Enough
-Dangeresque 3: The Criminal Projective
-Strong Badia The Free!
Because even though SBTF isn't the best episode, it still felt very climatic, had all 12 characters involved heavily in the story, and it revealed the secret about Homsar. I imagine it would be a more fitting end to the series.