I think my pick is an old PS2 game called Samurai Western. It's not really good by any means - I mean, the graphics are awful, brown and boxy, the character design is nuts, the cast is poorly voiced (especially the main lead who has an awful, borderline-racist voice track), the music is either not there or horrendously tepid, the level progression is weird and the story is completely mental. I mean, this is a game that starts out promising enough - the lead, a samurai, goes to the Wild West (natch) to track down and kill his brother who abandoned the samurai way of life. By the end of it, the samurai has fought typical Western bandits, two midgets who jump like Yoda and wield Wolverine claws, a horde of gun-toting robo-bandits dressed in Georgian clothing, a massive camp black man who wields a steam-powered gatling gun, saved a comedic fat black Sheriff called Donald from being lynched and stopped a tyrannical land-despot with his 50% Hulk and 50% beard armed from... errr... buying more land, I guess? Basically, it's off the wall nuts. But, the combat is actually quite slick and flows beautifully once you get the knack of it, especially the dodge mechanic which sends your samurai zipping all over the place and the armor customization mechanic is hilarious as you can run around with, say, a 6 foot giant parrot on your shoulder, or wearing an entire steam train as a costume. It's terrible, but also terribly good fun.