I didn't think there would be a better line this season than, "He's often spoken of the coming war between man and the brotherhood of machines," but this episode has proven me wrong.
There were two moments where I didn't just laugh out loud, I CACKLED out loud.
1) Brock: You must be the Cleaner.
The Cleaner: [smiles] *TING*
So cheesy it was hilarious.
2) March of the Wooden Soldiers with the clones and a rather gay (i.e. jubilant) Sgt. Hatred. It was my favorite obscure cultural reference of the season (if not the entire series) and it had me laughing uncrontrollably because of the simple wrongness of it.