[quote=@Double]
[@The Kid Lantern] What is it with you people and mentioning all these Earth locations. Has it not occurred to any of you that he's a SPACE COP? Space. Cop. I doubt he'll come within a thousand lightyears of Earth for any reason that isn't galactic civil war or something. Earth isn't the only planet that has to matter in a superhero universe you know. So why exactly does my SPACE ALIEN COP who operates on ALIEN PLANETS THAT ARE NOT EARTH absolutely need to have a bunch of weaknesses to shit that only really matters if he visits Earth? The armor is not that strong, honestly it's not much better than Stormtrooper Armor, and news flash, it can be damaged by enemy weapons if hit enough times. And once it's damaged enough? That "basic" environmental protection goes bye bye, so feel free to fuck him over with a Cold Gun or by ejecting him out into space at that point.

Honestly, people are gonna give me this much shit over this, then it's not worth continuing. Sorry I wasted your time.
[/quote]

Mary-Sues are considered bad for a reason. The less weaknesses a character has, the lazier the writers can be, and the more boring the story becomes. I could write a two-page list of everything wrong with my hero, and every way she could be killed. Not because I don't want her to win, but because it makes for a deeper character, with more subtleties in the story. Think of the movie 'Predator'. Arnold injures and confuses the Predator in about a dozen different ways, which makes for a much better story/fight, than just "nothing.... nothing.... nothing..... OH, this one specific thing suddenly kills him."

I advise you to challenge yourself as a writer, by making a flawed, weak character. Explore the potential implications.

Or don't, if that's your inclination. Just something to consider.