- In the comic adaptation, fluffyslipper's art of Flowey's smile and nightmare faces makes for some truly terrifying pages. It's even worse considering he's almost always smiling during these moments. Pages 5 & 6 are good examples of this.
- Flowey's complete change of demeanor when Papyrus heals him. He goes from being creepy to outright furious while yelling at him to attack.
- Flowey breaking Papyrus' arm.
http://tvtropes.org/pmwiki/pmwiki.php/NightmareFuel/FloweyIsNotAGoodLifeCoach
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