King Koopa
All Star
Where is that Rock Clapping gif?
And now that Part 3's officially over, I can point out a couple subliminal parts in the ending if yall haven't picked up on em yet...
Joseph only holding 3 train tickets
Them seeing Abdul, Kakyoin, and Iggy off as they cross the bridge (in some cultures, crossing the bridge symbolizes crossing over to the afterlife)