My problem isn't that they gave Samus a personality nor do I think the game is particularly sexist... it's just that the personality they gave that iconic character is so downright irritating, pathetic, and plain unlikable she ruined the game for me.
And I don't care if it was already established in a 'manga', I don't read comics as a rule, it doesn't change that they made the valiant world-saving bounty-hunter into an annoying twit.
See I always pictured a Ripley style figure; Holding Newt in one hand while torching Alien scum with the other, her stoic silence a sort of personality itself where you've got this lone badass doing what she feels is right against all odds without complaint because it's just what had to be done... Samus now however seems more likely to curl into a ball (hur hur) and cry, monologuing the whole while until daddy/boyfriend/dominant-male-figure snaps her out of it. Which I might add is completely at contrast with the game itself where you're running at break neck speeds down corridors just wasting everything in your path. Not that the gameplay in Other M was much better, I've always been a fan of the exploration element of Metroid, Castlevania is another favorite series of mine for example, and Other M just didn't satisfy me in that way either.
So they made Metroid into a linear shoot em up with an unlikable protagonist. Not my cup of tea... exactly the opposite if anything. Other M is like bizzaro-Metroid, strangely similar in a cosmetic sense and sharing the same name, but at the same time so very different from the other games in the series and if anything a perfect example of everything I played Metroid to avoid having to deal with in other franchise.
I'm sure there are plenty who enjoy it. But not me. I hate the new direction, I really do. I'm glad I only rented the game, as if I'd bought it I'd feel absolutely ripped off.
Castlevania is apparently getting a 'reboot' under a new dev studio as well and I'm preemptively weeping (figuratively) for that series as well since I doubt I'll be any happier with those results either, especially considering I'm not a fan of Metal Gear and apparently those are the guys doing the 'new' Castlevania.