The Warden of the prison left magazines about engineering and inventing out for Megamind when he was little. Warden never questioned the disappearance of these magazines. Minion knew this all along and always thanked him for his kindness
When Megamind got sick when he was young, the Warden would personally take care of him, and teach Minion how to treat him, and how to look out for warning signs of impending illnes
The prison inmates also taught Megamind how to read/write and do math so that when Megamind was old enough to leave, he would be able to make something of himself
Megamind would invent prosthetic limbs and make canes for disabled inmates who were never given them
Megamind would help scheme up jailbreak plans, and when he was too little to do much else, would keep a lookout with Minion for the guards
Warden and Minion being friends, and Minion convincing Megamind to let his blue friend attend school
Warden buying a small cake and small presents for Megamind for his birthday, and even letting the inmates have small parties for his and Minion’s ‘birthday’. Megamind still gets birthday cards into his adult years.
Megamind teaching the other inmates how to build/repair things and educating them on math/chemistry/literature/mechanics as he learns more so that he can repay these people who cared about him enough to teach him and spend time with them. And also so that once they get out they can get jobs with their new skills
Minion learning how to drive so that he can teach Megamind himself
Roxanne and Minion met when she was an aspiring news anchor. They were both having problems at the time, where Megamind wasn’t a well-known villain yet, and Roxanne was still an unknown. Minion proposed that she let herself be kidnapped, so she would have a story, and to get Megamind acknowledged by mainstream media, after assuring her that she wouldn’t be harmed, and would actually be in one of the safest places when Megamind and Metromans’ fight took place
Minion emails/texts Roxanne ahead of time for where/how the kidnapping will occur so she can be prepared to look nice and professional for her job
Megamind was requested for interviews during his incarcerations (he’s broken out of prison multiple times) he turned down every interviewer, except Roxanne. He only would accept interviews from her.
Megamind sends Roxanne anonymous gifts for her birthdays, Christmases, Valentines, etc. Roxanne always thought they were from Metroman
Megamind makes his money for his robots/weapons by patenting prosthetics and clean energy generators (better windmills, more efficient solar cells, hydroturbines, and energy efficient appliances and more economical cars). His prosthetics are some of the best on the market while being low cost. He donates at least half of his money to charity.
Megamind donated some of the pieces to the Metroman Museum himself, selling them to the Museum, and using the money for charity and education programs
Bernard is secretly a huge fan of Megamind and sends him fanmail and knick-knacks. He also sends him info about big events for ‘evil planning purposes’ and constantly encouraged Megamind to go and do things whenever the super-villain was feeling down