EDIT: Okay so now I've given him a look over and there are 2 things

1) He needs a civilian identity, and a regular job. Maybe it can be like Martian Manhunter where he has some sort of cloaking device or transforming disguise but he needs to be able to appear human on a day to day basis and only turn into his true form when needed.

2) He's very OP.
Bulletproof is okay but overall he is too durable, basically anyone who doesn't use 'magnets' cant even touch him. You also need to be more descriptive on what 'weapons' he can transform himself to use. It should be limited number of clearly stated attacks and abilities not an endless possibility of 'adaptation'. Also scrap adaptation altogether, its too vague, have some clearly stated reactive (and limited) transformations for specific situations.

There is no Magic in this RP so his weakness to it is pointless.

His multi-directional defense flaw is offset by his ridiculous durability.

The other weaknesses are fine, but you'll need at least 2 more significant ones to  replace these two.

Tone down the superior intellect, supercomputer smarts are a power all on their own.

Tone down the destructive power of the weaponry.

And obviously tone down the durability a LOT.

I'll add Miles Melendez to the overall lore of the City, if you can let me know how he made his fortune we can add his company or his industry as one of the locations in North Maximum.