- Ass Pull: After defeating baby Bowser in Yoshi's New Island, adult Bowser appears out of nowhere from time and space to prevent his defeat as an infant. The game itself even lampshades how sudden and forced his appearance is.Suddenly... warping through space and time... King Bowser appears!
- You might notice that Mr. Pipe has Mario's eyes if you look at him closely. Otherwise, there's no indication that time travel is involved before Bowser shows up.
- Broken Base: While every Yoshi's Island game since the first has been a Contested Sequel in some way, New Island is easily the most divisive entry in the franchise:
- The graphics. Instead of reusing the "coloring book" look of the previous two games, the developers have chosen a style that resembles Yoshi's Island's artstyle mixed with Yoshi's Story pre-rendered 3D visuals, with backgrounds looking more painted and characters looking like claymation. Some love the style and think it fits in well with the usual Yoshi's Island aesthetic while still giving the game its own identity, while others think it looks bland and lacks the charm of the previous games' coloring book style.
- The fact that game's opening cancels out the original's ending by including a twist that the parents who were brought the Mario Bros. are actually not their parents at all also has the fanbase split between the people who don't mind it and find it hilarious, and the people who think that this is very disrespectful of the original Yoshi's Island's ending, which was considered a Heartwarming Moment.
- Contested Sequel: Easily the biggest example out of all the Yoshi games.
- Fanon Discontinuity: The Sequel Reset that cancels out the beautiful ending to the original game is disliked by many of the players, both those who like this game and those who don't. The completely unexplained appearance of the adult Bowser as the Final Boss doesn't help matters. Of course, those who don't like the game just tend to ignore the whole kit-and-kaboodle altogether.
- It Was His Sled: Bowser bends time and space just to show up as the Final Boss.
- Memetic Mutation:
- The title theme and especially "The Yoshi Clan" seem to have headed into this territory due to how ear-grating they are. While the game's soundtrack as a whole tends to get a bad rap, it's those two pieces that people tend to make fun of the most often, and they frequently get tossed around as a humorous "annoying music" post on social networks.
- "Suddenly...warping through space and time...King Bowser appears!"
- Most Annoying Sound: The infamous track "The Yoshi Clan", an ear-grating, off-key and cutesy arrangement of "Old Macdonald Had A Farm" played on kazoos. Its been compared unfavorably to the equally infamous Mansion Basement Theme from Resident Evil: Directors Cut for how obnoxious it is.
- One-Scene Wonder: Bowser, who stars in the game's most baffling moment. Similarly, there's Mario at the end.
- Scrappy Mechanic:
- The invisible clouds in this game, which most of the secrets are hidden in now. It creates a lot of Fake Difficulty, especially considering that many of them are hidden in obtuse locations you may not even think of going.
- The fact that some coins (yes, even the red ones) don't appear until you walk in a certain place. Once again, these trigger spots are often in places you would simply ignore, wouldn't think of going into, or just have no indication of anything special.
- The redesigned vehicle sections which use tilt controls.
- Unlike in previous games, the checkpoints don't track the amount of stars you have, meaning that if you lose a life after hitting one, you're knocked back down to ten. This can really be a pain, especially when trying to get all stars in the levels for 100% Completion and especially when trying to get them all in the forts/castles where it's very easy to get hit by a boss's attacks.
- So Okay, It's Average: While far from a terrible game (in fact, many will tell you that it's still pretty good), New Island is still generally regarded to be inferior to most of the other Yoshi's Island games.
- They Changed It, Now It Sucks!: A major point of criticism of this game was doing a Sequel Reset that retconned out the very heartwarming ending of Super Mario World 2: Yoshi's Island.
YMMV / Yoshi's New Island