Walking Armory: The Mark I armor carries his skateboard, battle staves, knives, a garrote, icro surface-to-surface missles and an uzi (used for emergencies). The Mark II armor carries battle staves, pepper spray, sleeping gas, blades, grappling wire, explosives, incendiaries, an extendable computer tap and an emergency glider.
Timey-Wimey Ball: Because the Guardians of the Galaxy are honorary Avengers, Vance is the only member of the Avengers to be on the roster twice as the same person.
Incorruptible Pure Pureness: Refuses to be sprung from jail when he's convicted of manslaughter for accidentally killing his father in self-defense. "I believe in the system, so I'm going to abide by it. Just because I have powers which would make it tempting to ignore the law — doesn't give me the right to."
Took a Level in Badass: After doing a stint in the Vault for accidentally killing his father with his powers, Marvel Boy matured emotionally and learned to control his powers. This would eventually lead to him changing his name to Justice and leading the New Warriors.
My God, What Have I Done?: After the Stamford incident, courtesy of Civil War, Speedball became the grim & gritty hero Penace, blaming himself for the incident, and becoming a psychological trainwreck. Later though, he gets better to an extent, and this leads to...
The Atoner: He becomes Speedball again and joins the Avengers, as an instructor at Avengers Academy, trying to give the the students the proper guidance they need so that anything like Stamford won't happen again. He still has some issues to work through though. (Such as cutting himself.)
Meaningful Rename/That Man Is Dead: Speedball to Penance, but after he Finds Nitro, forces him to wear the Penance suit for his crimes and has him arrested he's back to Speedball.
Younger than They Look: Youngest person to ever join the Avengers at 14. When the other members found out he was a minor, he was given probationary status, then demoted to becoming a member of the New Warriors when he helped them steal a Quinjet to help them on a mission.
I Just Want to Be Special: Mike got to use the Torpedo Armor but not as much as Mickey and he actually does want to be a superhero.
Killed Off for Real: In a sad zig-zagging of Retirony, Mickey was going to give up being Turbo and let Mike take over full time. The Dire Wraiths (old enemies from the original Torpedo) kill Mike as Turbo and feeling guilty, Mickey strove to be the hero Mike would have (at least until she co-created the Loners).
Taught by Experience: His hindsight is what helped the New Warriors better deal with recurring threats and recruit the other “New” New Warriors when when the Sphinx had sent the original team to different periods in time.
Turn Coat: After the Civil War began, some of his friends being killed in the process, he cowardly exposes all their identities online and incited violence against them.
Jerkass: Wouldn't let up on making fun of the New Warriors until eventually one of them attacked him from behind and left him into a coma.
Jerk with a Heart of Gold: He only wanted to prepare the recruits for the rough life of being a superhero and is only harsh to them in order to do so. Any harm that befalls the recruits he takes as a personal failure for not teaching them well enough.