These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Broken Base: Over whether this or the second game is superior. Fans of the second tend to defend it for its lack of out-of-place time trials and having fewer vehicle levels, while fans of the third are more fond of the time travel aspect and more interesting level designs.
Ensemble Darkhorse: Dingodile and N. Tropy, both because of their designs, the roughness of their Boss Battles and their quirky accents. Dingodile started showing up quite a bit, and Tropy actually took Cortex's place for one game. Sadly, with the Radical Entertainment games, both have developed a case of Chuck Cunningham Syndrome and haven't been seen since their roles as minor antagonists in Twinsanity.
Game Breaker: The Fruit Bazooka is this, since now you can aim away at the crates without personally going there, as well as hitting enemies from far away. Not so much for Time Trials, though.
Crash's death animations are usually Played for Laughs, but when he gets hit by one of N. Tropy's energy balls (or by colliding into the flying saucers of the future levels), he explodes into several particles and disintegrates out of existence. There's nothing silly about it. It's played unnervingly straight.
Scrappy Mechanic: You have to wait nearby after activating the timer in TNT-crates, since if you just go on afterwards, only its explosion records in the level's crate count, without destroying any crates next to it.
Stop Helping Me!: While Crash fights Cortex, Aku Aku keeps Uka Uka busy by dueling with him. Their battle can actually kill Crash if he gets caught in the crossfire, and is in fact the main obstacle of the fight. Not only that but this means you can't get a protection from Aku Aku.