Not sure I like the severed head assassin robot shtick. And the penis joke just seemed gratuitous. I almost did a spit take when I heard it.
The flashbacks and references to past episodes was cool. I don’t think I ever caught the one with the never-ending dance rave people though.
And just who was that mysterious creature giving directions outside the bar?

The really big issue the show has tapdanced around from the beginning is if Jack succeeds, the Aku “future” ceases to exist, or is overwritten. None of Jack’s allies will remember him, if they exist at all?