1. Resident Evil Remake ; This game has masterful level design, featuring Metroidvania-esque progression, exploration and puzzles. But even with already complex level structure intact, there's another layer added through survival gameplay, which keeps you planning your moves and strategies, more than in any other RE title. Mixing that with a proper difficulty, absolutely amazing art direction and music pretty much gives you the definitive Resident Evil experience of this generation and most likely of all time. Yet it also is one of the best remakes of all time. Because they've not only added new areas, puzzles and enemies, but they've also both altered and enhanced the gameplay, plus changed the general structure up for a much grander title than the original. The graphical composition is also completely new, terrifying, and not blatantly restricted by the original. Certain developers nowadays would have sold this as an actual sequel.
2. The Legend of Zelda: The Minish Cap ; The only truly great title to ever feature Cartoon-Link. The dungeons and gameplay mechanics are very varied and it both looks and sounds astonishing on the GBA. And most importantly, the world is filled with tons of sidequests, characters and simply things to do. The main town is the busiest right after Majora's Mask and the shrinking mechanic actually enhances certain quests and exploration.
3. Paper Mario: The Thousand Year Door ; This game has one of the best RPG battle systems, since it mixes engaging micro- and reaction games into the otherwise turn based system. It has tons of different, yet unique scenarios and mechanics, more than most other RPGs anyway, and great writing plus presentation. Despite the simplicity, the battle system offers a pretty decent amount of strategy making, which also is necessary for the final batch of boss fights, which can be quite challenging. It's biggest fault back in the day was being a blatant copy of its predecessor, but nowadays, this more refined and better looking version of Paper Mario is obviously the prefered one.
4. Killer7 ; This title lives off its unique, yet also disturbing atmosphere and story, which make any David Lynch movie look tame and simplistic in comparison. The cel shading looks wonderful, the music is great and any fan of twisted mystery/horror stories needs to check this title out, since the story is not only fascinating, but also uses the advantages of the videogame format very well. Although the gameplay itself isn't that great, it serves its purpose (despite some minor annoyances) and its simplicity allows for great shots and angles, adding to the overall style.
5. Okami ; Tutorials aside, this is a great Zelda-esque, featuring a world map that actually gives you the feeling of being on a big journey, with tons of different and beautiful vistas, good characters, story and obviously beautiful art and music. They do a lot of different things with the paintbrush mechanics and it simply feels good to play.
6. Metroid Prime ; The generation's equivalent of Mario's jump into a new dimension prior. Some aspects of Metroid got lost into its transition to 3D, yet it created something new and grand. It's a slower paced Metroid that lives off the atmosphere and immersion, for which the decision for first person view was spot-on. Not only were several graphical effects regarding the visor very refreshing back in the day, but the scanning mechanic wonderfully weaves tutorials, story telling, puzzle solving and general examining into exploring ancient temples and other great locations. Unfortunately, it falls kinda flat in the end, but it still was an excellent adventure.
7. God Hand ; Yes, this game is solely about punching people (and other creatures). But the mixture of high difficulty, precise controls and custome movesets makes this title tons of fun, motivating, but never frustrating. Also, even though it lasts about 15 hours, it also never gets tedious, since new enemy types and other stage hazards never stop coming and you gotta keep adjusting your strategies and improving your skills. You're also wrestling with gorillas.
8. Tales of Symphonia ; A likeable cast and the story still has some good twists, even though some tropes were often recycled in later Tales of- titles. The first attempt at 3D Tales' (real-time) combat is still very fun, the presentation is great and unlike later titles, this still has classic dungeons with decent puzzles and all that jazz you'd expect.
9. Skies of Arcadia Legends ; Even though the individual aspects of this RPG don't seem very special on their own, together they make a game that truly gives you the feeling of being on a gigantic pirate adventure, discovering a whole world and becoming a pirate master. Even more so if you take even a small amount of time to explore the optional content. You might want to get the Legends version for a lower random encounter rate though.
10. WarioWare, Inc. ; This wasn't even the first Warioware title I've played, yet it still was easily the most fun. It might just be one out of maybe a handful truly great minigame collections ever created. The mixture of testing your reactions through all kinds of merely second-long challenges and completely unpredictable, wack presentation makes this tons of fun and even some unlockable extras (of which some are almost full classic games) can be motivating for hours.
x. Silent Hill 2 ; This might be the scariest survival horror title, but the gameplay was always a little annoying compared to Resident Evil.
x. Luigi's Mansion ; A quirky and unique adventure, whose feelng the second title couldn't quite capture (even though it was good). The presentation back in the day was mindblowing coming from Mario 64 and Crash Bandicoot, which made this feel like a living cartoon.
x. Eternal Darkness ; This survival horror title was usually known (if at all) for its ,,sanity effects'', but its strength actually was all the different historical setpieces over the story course of two thousand years.