Chang's new weapon is very similar to the staffs the Huntsclan use. (edit) The Grim Reaper (Marty) from "Family Business" was cameoed at the DMC (edit) Chang has a new staff weapon in this season.

Functions:
1) Firing energy nets
2) Firing energy rays
3)A cutting weapon (hinted) (edit) End Credits: Fu Dog explaining where various animal metephores came from (edit) The Helper Monkey's name is Bananas B (edit) Chang returns in this episode. (edit)

Spud: Since you found the love for our friendship sweaters, I decided to give you a friendship beanie too.
Trixie: (Sarcastically) Oh. Lucky me. (edit)

Spud: Done in by evil footwear. Somehow I always knew it'd end this way. (edit)

Fu: I can't believe Jake didn't have my back when I needed him. Huh, it's kinda like how I didn't have his back when he needed me. You know I bet if I look hard enough there's a lesson in here somewhere... (edit)

Bananas B: Yo, you's be wantin' extra credit in algebra, algebro.
Fu: (laughing in a sarcastic way) Algebro.
Jake: (actually laughing) Algebro! Funny. (edit)