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.
It Was His Sled: It's hard to talk about the ending without giving away the identities of Tommy Angelo's killers from the second game.
Stop Helping Me!: Though they are usually pretty intelligent, the main character's partners (especially Sam, for some reason) will occasionally get a bit too enthusiastic and run straight into trouble.
That One Level: The racing level, which thankfully has a helpful cheat to cut down the time you spend on it.
An update to the game removed this cheat (by placing an invisible wall in front of the side road you needed to be on to use it) but made this level easier by slowing the opponents cars down a good bit.