The other main difference between the two is that character death is almost impossible to avoid. While lucky players can store up lives or power to ward off game overs, there's only 1 false move between a player and character death. With the number of instant-death situations in the Megaman games, it's surprising how many times he explodes.
When Megaman dies, he doesn't just fall over or leave the screen.. he explodes. I guess that's reasonable for a robot but still... explodes. Explodes into little balls of light: