THE GOOD:Absolutely NOTHING. I cannot name one single good thing about it.
THE BAD:
Garbage story, weak and equally lame bosses, Zero with a straight saber, X with a saber being the WORST idea in an MMX game EVER, stupid bosses, the Nightmare System sucks, Gate and High Max are dorks, Sigma was PATHETIC... did I hit all of it? yeah, think I did. Fact of the matter is, the game is comprised ENTIRELY of bad points.
SUMMARY:
X6 is singlehandedly the WORST MMX game ever. I highly suggest to save your cash. Go buy a GOOD MMX game, like X4, X8, or Command Mission. X6 is the worst. If you buy it, I swear to god you will only regret it. It's not worth buying, renting, or even scraping out of a trash bin. The above reviewers I would likely assume have not played REAL MMX games, and this one was probably the first they picked up. Don't be like them!