Successful yet didn't sell? Oxymoron. This article could be titled "8 bad games critics were wrong about" or "8 games that failed." Critics do not determine a game's quality. Sure, "All reviews are subjective," but sales are not. There is no New York Times "Best Reviewed" list. As they say in showbiz, the audience is never wrong.
Jade Empire - Bad game. Terrible combat, no customization, small world, low content. Nothing here to attract action game fans or RPG fans. RPG players like good combat and quality customization options.
Psychonauts - Even the developer admits it's bad. Funny story, lousy platformer. Too 'zany' to appeal to anyone beyond a tiny niche.
Vanquish - Trying to mix Devil May Cry with a shooter is a neat idea but it doesn't really work. No multiplayer. Plot is pure cheese. Average game that gets lost in the sea of crap.
Okami - Looks neat but sooooo borrrring. Obscure Japanese mythology does not appeal to Americans. Characters yammer forever and never shut up.
Grim Fandango - Like Psychonauts, too weird for it's own good. People aren't interested in a point-and-click with skeletons.
No More Heroes - Japanese weirdness times a million. Nonsensical story. Combat is shallow and button-mashy. Graphics are crap and the Wii was a lousy console. Suda 51 is an acquired taste and none of his games really sell.
Beyond Good and Evil - Lol, every gaming hipster's favorite game. Game is so bad the author of this article has to praise... the animations? Are you kidding me?! What game has ever sold because of 'Awesome Character Animations?' This is like praising a restaurant for having good parking.
Beyond Good and Evil is essentially a Zelda clone with 1/10th the content. Crummy, shallow combat, dumb animal characters, boring plot that goes nowhere. Lame puzzle-solving gameplay, forced stealth sequences, bugs, short, tiny world and levels, etc. etc. Even the title is bad; obscure Nietzsche quote does not apply well to a colorful adventure game. This game oozes crap from every byte.
The audience is never wrong. Good artists sell!