YMMV: Paper Mario

Individual games:
  • Fridge Logic: A hilarious (and very fortunate) in-universe example. Right when Mario leaves Lavalava Island, Jr. Troopa shows up, having swam all the way there. He misses Mario and has to swim all the way BACK to Toad Town. When Mario fights Jr. Troopa at Toad Town Harbor, his HP will be halved at the start of the battle. After Mario beats him, Jr. Troopa will realize he could've just flown to Lavalava Island and back since he has wings.
  • Germans Love David Hasselhoff: Americans love Paper Mario; in Japan, its country of origin, the series is not nearly as popular.
  • Moral Event Horizon:
    • Grodus deactivating TEC for betraying him while Peach watches.
    • Dimentio seemingly killing Mr. L/Luigi and, after that, the whole party. Later, he finally cements himself as the Big Bad by attempting to kill the already beaten Bleck.
  • That One Attack: Magnus Von Grapple 2.0 would be easy if it weren't for its audience-machine-gun attack.
  • That One Level:
    • The Dotwood Tree in Super Paper Mario. If you get hit by a Crayzee Dayzee mid-jump (and this is a very jumpcentric level), which you probably will, you'll probably end up falling a good distance and having to do large chunks of the level over again.
    • Chapter 2 in every Paper Mario game can get annoying pretty quickly. In the first two games, it's because of the enemies getting noticeably stronger than they were in the first chapter without Mario having much of an advantage to match; in the third, it's because of Merlee's Mansion being tedious to get through (especially 2-3), not to mention having one of the biggest doses of Nightmare Fuel in all of Paper Mario; in the fourth, it's because the levels tend to be The Maze, at least one of them has some borderline-Guide Dang It moments, and the boss pretty much imprints upon you the game's (commonly pointed to as being flawed) boss weakness system.
  • They Changed It, Now It Sucks: The first two installments are generally very well-regarded, the third and fourth are substantially different beasts and generally considered good examples of trying to fix what isn't broken. Exactly how bad Super and Sticker Star are relative to the first two games and to each other tends to differ from person to person.
  • The Woobie: Shadow Siren Vivian is often wrongfully and mercilessly disciplined by her sister Beldam. If you feel like treating her right, well, Chapter 4 seems like the right time to start because Doopliss steals Mario's body and Vivian's sisters leave her alone while they slack off. She will join you after you console her, but eventually she'll find out who you really are and leave. She changes her mind in the end though and stays as a permanent party member.