Maxwell may be an evil bastard to his friends in New Super Mario Bros. Wii, and quite the renegade in Mass Effect, but then came this little nugget during 4-Player Bomberman.
Wolf Shirt: Maxwell, if your mom and Ferr were trapped in a fire, who would you save?
Maxwell: Uhhhh, probably my mom.
pipes!'s reaction to the Twilight Princess LP when Link did indeed bomb some dodongos.
Also in the Twilight Princess LP, Maxwell lets out a loud squee when Link gets to pick up a puppy.
And in Seaman, all four guys let loose a "squeal of parenthood" when one of the little abominations says his first word.
At one point in the GTA LP Maxwell admits that he loves the guys. (Although it was after a racist joke (16:13 of this video))
During Octodad Maxwell takes great care not to break a mug that says "Best Dad Ever".
Also the astronauts taking care of Octodad's daughter, bringing her a Super Hug book and protecting her from spiders... Too bad the game later doubled the amount of spiders they released at once on them.