Nostalgia doesn't blind me, Crash Bandicoot 3: Warped is one of the best games ever made.
Gameplay is improved from the predecessor, because now Crash can earn new skills by defeating the bosses. Skills are super charged body slam, double jump, tornado spin, bazooka and running shoes, which allows Crash to run faster. Coco is playable character in this game. Coco's Pura levels are great, but other her levels are "just" good. Relic races adds more challenge and time to game, so those races are fine.
If something should be said about negatives of the game, I would say, that it has too much non-platforming levels. Diving underwater, jet ski driving, motorcycling and flying biplanes. Too much. And I really dislike those biplane levels.
Crash Bandicoot 3: Warped is one of the best PS games you can find.