Some more I haven’t seen mentioned yet, maybe just outside the top 25:

• Rapid Reload/Gunner’s Heaven - Gunstar Heroes-inspired platform shooting chaos
• Jumping Flash! - Low poly early FPS series with a robot bunny that jumps really high
• Bishi Bashi Special - Compete with your friends in WarioWare-like rapid-fire three button minigames
• Vanark - Basically Star Fox 64 for the PS1, but went almost entirely unnoticed
• The Misadventures of Tron Bonne - Mega Man Legends spinoff starring goofy pirates and their adorable robot henchmen
• Tail Concerto and Silent Bomber - CyberConnect2’s first two games; both are hidden gems of 3D action
• Gran Turismo 2 Combined Disc - Both discs combined into one oversized disc by Silent, creator of SilentPatch for the Grand Theft Auto games
• Namco Museum (all six volumes) - I wish later Namco compilations had the first-person museum segments from the PS1 games
• Tempest X3 - Back in my day, “Jeff Minter” was a euphemism for mind-altering drugs

lm.korako.me is a Japanese Lemmy instance run by @karasu_sue@lm.korako.me . It’s small, but it counts!

I’d love to see a revised map with all these ones from the comments added in.