Wow, lots of ground to cover in this thread, but here goes...
Samus is dependant on the cast of character presented before her
Last time I checked, which was about last night, Samus was bound by Galactic Law (or whatever fancy organisation those guys belong to, now being refered to as "Space Law") even if she is a licensed bounty hunter. And that's the important thing to remmeber: licensed! If she goes around doing whatever she wants, she could be hunted down as a criminal. Yes, some of the "unlock" scenes make little to no sense (why can't she use Ice Beam but everyone else gets to use the Freeze Guns/Why can she only activate the Varia feature after going through most of the volcano part) but you need to excuse small mistakes sometimes because even great works have small foibles in them. Also, that's not to say Other M is a "great work", just that things far above it have similar flaws.
But Bounty Hunters don't follow laws! They get the job done! She's too bad ass for Space Laws!
You know what? I'll conceed that point. Let's assume to go around killing people and raking in cashs he doesn't need all those galactic space stations to help fix her ship up, reload her aersenal and give her her next mission. Is Samus really a Bounty Hunter at this point, though? She's doesn't really get paid for any of this. Most of the time people just ask her to go check out what's going on at "location X" for "reason Y". Wouldn't this make her an explorer? I mean, she's discovered the entire planet of Zebes! Really, I think her job title needs adjusting at this point.
Why can a Freeze Gun stop Samus!? They're weak sauce!
Considering these are banned by Space Law, I doubt they're weak. I'd go as far to say that considering it seemed to me that it was a "last ditch effort" tactical decision when they first used them that Freeze Guns are pretty powerful and harmful to organic life. Even the Freeze Gun power-up clearly states it increases damage to all enemies hit with it! All enemies! If a Freeze Shot is an upgrade from the plasma Samus normally fires, then I'd have to say that Freeze Gun technology is pretty powerful.
Why is she such an emo *****!?
Emo? Really? All I saw was a character that lamented for good times passed, but then decided that part of her life was behind her because she grew the hell up! What I get out of what I've seen of Other M is that she's been alone for a very long time and has no real way of associating herself with humanity anymore. However, she seems to understand that as much as she doesn't fit well with society, it was her choice to be excluded and rolls with it. And all the blubbering over past friends? Well, I'd be pretty emotional too if I had close ties with people and then suddenly they appear in my life. Get over it.
Why is she so scared of Ridley!? She's killed him, like, a bajillion times!!!
Alright, this is probably the easiest argument out of them all.
Remember when in Super Metroid, the game Other M directly follows, Samus "kills" Ridley? Of course you do, it's one of the times you counted in the "Samus vs. Ridley" tally of why she shouldn't be afraid of him. Now, do you also remember the part where the entire planet blew up and no one saw Ridley escape it!?!? By all accounts, Ridley was still on planet Zebes when it blew up. Now, I understand Samus is pretty cool under preasure, but if I had an arch-nemesis that just survived a brutal beat-down by me, which was followed by a planet exploding on him(!!!!!!!) I'd be seriously considering my life decisions and career goals at that moment, right before I crap out my intestines and cry to anyone near-by to make the bad space dragon monster go away! Yes, there's hyperbole in there, but that's just how rediculously scary that would be! This guy survived an explosion from something that killed Mother Brain, which would probably be that of many, many megatons of blast force, after getting the crap kicked out of him. Hope that puts some perspective on that.
Why isn't Samus the badass we all know her to be!? That's not how we invisioned her!
Fault in your statement. You can invision all you want but it's not your character. It is no player's character. It is the character of Nintendo and you can cry about it all you want but it was never your character. If you put your own personality attached to Samus and the character didn't develop exactly how you believe she should have, tough cookies! Stop buying Metroid games if you don't like where it's going. Your fault for expecting one thing and getting another instead of following the actual story and character development as it came out.
But all the fans thought she wa-
SHUSH! Not anyone's character but Nintendo's! No excuses. They can make her into whatever they want. Really, she could've been that way all along and this is the first game they decided to flesh it out. Honestly, there's enough reading material to get a sense of where she was and where she is now to make a full judgement. Seeing as I haven't read any of it, I will reserve fan rage until then. For now, I simply say "that's how she is, deal with it!"
Now, I'll be the first to say that I haven't completed Other M yet, but I think my arguments are fairly clear and also tie in information I've gathered. I hope to hear some good rebuttles or an ultimate declaration that I'm the supreme debater and I win this thread...
Yeah, I know the latter will never happen, but a man can dream.