Pac-Man World is pretty good, I'm kinda surprised that this game isn't talked about that often. The game has such fun movement, and most of the levels were pretty fun!

I was going to give this game a 8/10 but there were a few things that made me change my mind. The camera was pretty bad at points, the controls felt kinda inconsistent, most of the bosses were bad, and i disliked how you were required to obtain keys to unlock the final world, because they were kind of tedious to find.

My favorite level was "crazy cannonade" (1-3) and my least favorite level (by far) was "spin dizzy" (4-3).

Anubis Rex is genuinely worse than the Bed of Chaos oh my fucking god.
Edit: So as it turns out, trying to dodge the laser that is the sole reason this fight is difficult requires patience rather than platforming. Thank you youtube: https://www.youtube.com/watch?v=DdFCPYPZdjM
If this had been my introduction to the series I probably wouldn't have continued. Despite being shorter to 100% than its sequel I felt it was less interesting and more tedious. Anyway worlds 3, 4, and 6 are pretty alright, but 2 and 5 really drag.
Btw if you clear the Maze Marathon make sure you play a maingame level to completion and save in order to keep your progress. I quit after clearing the marathon and had my progress reset.

Pinche juego dificil pero jodidamente bueno, plataformero desafiante que hace buen uso de todos los movimientos de Pac-Man, con jefes creativos pero a la vez que ponen a prueba tu habilidad incluso van de acuerdo a la tematica de las fases, con coleccionables y rescates que no afectan al ritmo del juego, minijuegos que homenajean al clasico de arcade, y ademas demuestra que Pac-Man tiene lore, aunque eso si el juego llega a ser bastante injusto como en el jefe Anubis Rex, pero aun sigue siendo una joya yes yes como dice el fedewolf

PMW doesn't do much if you seek anything that's interesting but it succeeds at being a fun 2.5D Platformer in the veins of crash bandicoot, although unlike that game where the difficulty can be determined widely based on your decision to go for 100% or not, World suffers from sudden difficulty spikes from the questionably designed boss battles to the level design reliance on backtracking when it comes to the collectibles, some are vital for even accessing the climax so ignoring them isn't given option,
Credits where it due, the designers avoided stretching the backtracking road further by having the collectibles placed close by the locked doors to avoid making this task tedious, in most cases it revolves around circling a bit back which is nice, investing time to collect them all outside mandatory keys can lead you to bonus stages like the mazes or post-level bonus round where you can potentially raise your live count and score depending on how well you do in the challenges, the mazes are fine challenge although stage hazards didn't really remove the tedious repetitious nature while bonus round are fine time challenges that actually offer variety.

Pac-man was good enough to maneuver around the levels, his butt bounces specially can be useful for reaching higher grounds and allow potentially experimental players to bypass large obstacles, same can't be said for his other moves, the Rev-Roll and Pac-Dot Attack, both moves I use of in extremely situational, specially the Rev-Roll with moments like bypassing obstacle or activating switches, not all that fun or interesting like the butt bounce.
The Level design and visuals look great, I'm glad to see the developers willing to explore other avenues compared to most other platformers, the likes of the Pirate island, Circus Carnival, Space station, etc. are all treat to be hold, I'm specially glad the game doesn't shy away from the gloomy atmosphere like the dark temple levels with moody soundtrack and great lighting which unfortunately missing from many modern platformers

Unfortunately same can't be said for the boss battles as I mentioned, like of Anubis Rex and King Galaxian being extremely frustrating specially the former with how much projectiles they can spam at a moment notice overall resulting in unbalanced, unfair fight, but thankfully the final boss fight with Toc-Man is a great spectacle and definitely ends the game on high note by having to test your moveset against giant man himself!.

despite the awkward implementation of certain mechanics and designs choices, I still had good time and would gave it a solid recommendation from any platformer enthusiast out there.

This game, for some reason, I absolutely adore. That wording is not meant to imply that the game is bad, 'cos it's not from what I can tell. I've played this game more times than I can count at this point. I have no reference for how this game is rated, so I have no idea if I am alone on this. I do know of one other person who has played this before, but I don't hear many talk about it. I believe it was rereleased at some point under the PlayStation Greatest Hits line, so it must have done well. The soundtrack of this game is one of my absolute favourites. I just love it to bits. Since this game is one of those PS1 games that plays the soundtrack if you put the game disc in a CD player, it works especially in my favour. Unfortunately it's not the full soundtrack, but what's there is nice to have. It is a fun platformer that I'd say is worth a go.