CPR: Clean, Pretty, Reliable: An even more ridiculous example than usual. Tristan's idea of CPR boils down to getting right in the victim's face and screaming "WAKE UP!" on repeat. A more conventional example of this trope occurs when Duke shoots an Aside Glance and flirtatiously offers CPR to any ladies in the audience.
Crazy Homeless People: A homeless man claiming to be Santa allegedly convinced Tristan to sit on his lap.
Expy: Joey's Scapegoat card activates fluffy animals with a "do-da-baa-baa-baa" Catchphrase, ala Kuriboh.
Horrifying the Horror: The combination of Joey being one move away from beating him in their Shadow Game after tanking an attack from Ra, and all his friends cheering him on by chanting "Believe!" in a cult-like manner, leaves psycho killer Melvin practically shitting himself in panic.
Melvin: WHAT THE FRIG IS THIS BULLSH*T!?
It's All About Me: Yami causes Joey to enter a life-threatening coma and then has the nerve to complain that Joey gets to ride on a stretcher while he has to walk everywhere.
Kill It with Fire: After debating whether he should burn Joey alive or just asphyxiate him, Melvin decides to go with the burning.
Limited Animation: Joey responds to Melvin's "why the long face" quip with the defense that he's just a poorly drawn.
Metaphorgotten: Melvin needs to brush up on his monologue skills a bit.
Melvin: The shadows are growing impatient, Susan! They're on a very tight schedule. They need to get to work by nine o'clock.
Oh, Crap!: Kaiba gets a big one when it appears that Joey might win the duel (which would result in Mokuba gaining control of the company via a bet he just made).
The Power of Friendship: Failed example. Well, Joey would have won the duel because of it, but Yami didn't believe hard enough, so it didn't work.