First off, Trollvoy is an adult Troll, not a child. He is fully grown and prepared to kick some serious nook.
Originally, he had bigger horns as outlined by the blue dotted lines, but. They reminded Trollvoy way too much of Unicron's, and as such he promptly removed them. It was painful. (He didn't really mind; masochism is a hard thing to drop.)
Trollvoy doesn't often type in his blood color (muted sea green; #5b9d82), mainly because he thinks it is stupid and a waste of time. (Cybertronian is still denoted by him using #666666, but this is an OOC visual cue and should not be 'seen' ICly.) His quirk, however, involves ‡‡ Putting two daggers before and after his lines. ‡‡ ‡‡ So basically it ends up being something like this. ‡‡ ‡‡ Yelling is optional. ‡‡ His trolltag is NP - negatedParadigm.
Any and all resemblance to Wolverine is unintentional. Seriously. It took someone pointing it out to make me gawk. I was TRYING to harken to his helm (audials, cheek guards) and still keep it 'organic' insomuch as hair instead of one solid block.