"OOGTAR NO WANT BE DINO FOOD!!!"
- The Koopas revealing their trap in "Send in the Clown". Several Thwomps block the exits as the cavepeople and the Marios try to escape before they are forced into a cage where some terrifying hungry dinosaurs await them.
- "Ghosts R Us", where Yoshi must save Mario, Luigi, Princess and later Oogtar from a haunted house. Their captor, Wizardheimer, isn't exactly Mr. Nice Guy. Probably because they keep screwing up his name.
- Koopa threatening to feed Oogtar to a dinosaur in "The Night Before Cave Christmas". Provides the page image.
- "King Scoopa Koopa": Luigi, Yoshi and the cavepeople turning into Chickadactyls was scary enough, but the real nightmare fuel was when King Koopa wanted to turn them into KFC-like food and sell them as food to the Rexes to eat for money. If Mario (who dislikes eggs, and was only eating the fries and coconut shakes) and the princess (who doesn't trust any of the food that Koopa was making) had eaten the egg Scoopa Koopas, Koopa would have won. Koopa's line really seals the deal: "One more day and it will be too late. Your friends will go from the fried egg to the fryer. And the next stop is the frying pan!" If this was meant to keep kids away from fast food, they did a good job of it.
- It's more subtle than most examples, but there is something very unsettling about how in The Yoshi Shuffle the episode averts Never Say "Die". The koopalings make it very clear that the egg breaking means the death of Luigi, a prospect to which Mario and Yoshi react with visible horror. To make matters worse, they decide to toy with the heroes by forcing them to play a game of football with Luigi as the ball, fully aware of the possible consequences.Big Mouth: And before we begin we would like to extend a welcome to Mario's brother, Luigi. Without his presence as a football, none of this would be possible. [...] Because it's now or never, it's do or die, and it's sudden death if that egg brrreaks open! Boy, that missed extra point sure looks big now!
- The monstrous Piranha Plant in "A Little Learning". First, it grows at an alarming rate when Oogtar feeds it fertilizer. Then, it leaps out a window and chases Koopa, snapping its jaws threateningly at him. Koopa, Hip and Hop hide behind a tree only for the Piranha Plant to find them and swallow them whole. Yoshi eating it immediately afterward doesn't exactly help matters. Though he does end up burping out Koopa and his sons.
- Hip's project causing the school to explode like an actual volcano.
- King Koopa's bed being surrounded by lava, thanks to Mario's "bedwarming". And since this is technically his last appearance in this show ("Mama Luigi" was a Whole Episode Flashback), this could have been the end of him for all we know.
- Luigi falling into the chasm in "Mama Luigi", all while screaming at Mario for help. Following that, his trip through the Lava Pits where two menacing-looking T-Rexes threaten to eat him and Baby Yoshi.
