Jack and Aku in “Unfinished Business”

Aku!

Aku

[dryly] Yes, it is I, Samurai Jack. [rolls his eyes] How incredibly observant you are.

Aku

Oh, put that thing away, Samurai. We all know what's gonna happen. You'll swing your sword, I'll fly away, and probably say something like "I'LL BE BACK, SAMURAI!" And then I'll flutter over the horizon, and we probably won't see each other for about a week. And then we'll do the same thing all over again.

Your wordplay will not trick me, villain! [he goes to attack Aku]

Aku

No, wait! [Aku transforms into a bat and flutters away over the horizon] I'LL BE BACK AGAIN, SAMURAI! YOU'LL SEE! [laughs evilly, then reappears in front of Jack] See what I mean?