Most underrated games of the generation thread

[Pyramid Head]

Often I play some game I kind of heard about, and then get it from a friend or cheap, after I'd forgotten about it.  A lot of times they turn out to be the best games on the systems.  So I'm curious what games are truly underrated (bad reviews maybe, sold bad?) that are actually great.

I'll give a couple off the top of my head, some for each system, though not neccessarily the top underrated game . ..

Wii : Endless ocean -  At the store it always just sat there, no one saying anythign about it, but i was curious and the price was right.  AMAZING GAME.  Its like shenmue in the ocean, just a full world.  I also hear people bash godfather wii, but I really liked it a lot, and thought it had a bit of strategy to it.

DS:  Hotel Dusk for sure.  Deep deep game.  Very original.  Metroid Prime Pinball should be played by more people, it's my favorite metroid on the system.

360: The Darkness.  It motivated me to make this thread.  All I can say is if you liked system shock or deus ex, get this game!  I personally loved Test Drive Unlimited as well, kind of the endless ocean of driving.

overall one i think is really underrated goin back to nes is M.U.L.E.  I'm dating myself here badly, but that was an incredible game for its time.

 

so anyway what are yours?  i need to buy some games soon :)