1-22 for Megamind (just kidding, unless,) but particularly: 1, 3, 10, 15, 16
Oooooo! Lol, going straight for the throat on these >:3
Their physical weak spots The most obvious one is his neck. Look, Megamind is strong and his head is well-balanced, but his neck is quite long and that has some drawbacks. Less obvious weak spot would be his secondary respiratory system-- his gills vent between the bones of his ribcage, so if you got up in there, you could potentially do some serious damage. And you can induce a state of tonic immobility by petting back to front over his crown, which is NOT something he advertises (currently that's just in the Feathers&Fins verse, but I'm considering expanding it to my general headcanons). There is also a poorly-healed hole in the back of his skull behind his left ear, but it's VERY small, so it tends to be overlooked.
Scars or painful spots Megamind doesn't typically scar, but he does have a couple of scars on his chest from Metro Man's lasers. He will also start having some joint and spinal problems as he gets older.
Fears/phobias He doesn't 'do' doctors or medical personnel outside of the prison infirmary-- and after the doctor who treated him as a child retires, he also doesn't stay there for long. He and Minion have everything they need to treat him at Evil Lair, from basic first aid to major surgery. Having a mindtwin with mechanically-stabilized hands is useful for more than just fine electrical work! Hospitals are even worse. Too much white, and the smell is bad. Less viscerally, he fears losing the very few people who are important to him. Minion, Roxanne. Even Metro Man, in a way, although I think he only develops that fear (or realizes it's a thing) after the events of the movie. Also? Earplugs. Fuck if he knows why, but he HATES stuff in his ears. The whole business is just wrong. Show him some earplugs and he'll get the heebie jeebies.
What it takes to make them cry Megamind has walls, but there's like six inches of space between the bottoms of the walls and the ground. If you tunnel under them by doing certain things he (A) doesn't expect and (B) wants so badly he won't let himself think about them, you can get emotional reactions out of him fairly easily (just be prepared to deal with the aftermath of those reactions: displays of genuine emotion are going to freak him out after the fact). That said, actually getting him to cry would require a situation where he is already somewhat comfortable lowering the proverbial drawbridge or throwing you some climbing gear, OR he's coming down from a depersonalization episode, OR he's just really really freaking out. Otherwise, the most you're getting is probably just a couple tears without actual crying-crying. ...So, give him a panic attack, basically.
Dark secrets/’skeletons in the closet’ We're getting into this a bit in Undertow, but I headcanon that Megamind is not actually all that broken up about having to commit the occasional murder. The part that REALLY freaks him out is that he isn't freaked out. But like...he's a supervillain, yes? That's "villain" with a "super" in front of it? I'm sorry, but you do not get that title by building robo-sheep and typhoon cheese. The key is presentation, but there's a bunch of different places that could go. And in combination with the headcanon that he's also Overlord of Metro? Sometimes his hand is forced. He does typically give people a choice: death, or the Long Gallery. The latter is basically a reinforced bunker with sealed boxes of blue cubes in it, suspended over tanks of water. The boxes will disintegrate naturally in about two to three hundred years.
It takes him a lot to hit the point where he's ready to do either of those things, but sometimes shit happens. On a related note, he...also doesn't threaten to do anything he isn't ready to follow through on. This probably doesn't look like a "dark secret" until you remember some of the threats I've had him make :/ He protects his territory.
The rest of his "skeletons" are backstory-related and would probably require several content warnings, so! Not going into that too much here. Although I did very vaguely allude to one of the backstory things in the last paragraph of my response to this other ask (which nobody appears to have picked up on, lol).
