The style of the black and white cartoon guy could be anything from a simple stick-figure style to a more detailed, hand-drawn look. Maybe it has a noir or vintage feel to it.
Well, a simple cartoon guy might have a plain outfit, not too many details. His expressions could be easy to understand, like happiness or sadness shown clearly. Also, his body shape could be quite basic, without complex proportions.
A flaky guy in a cartoon might be inconsistent in his actions or decisions. Maybe he keeps changing his mind or can't be relied on to follow through on things.
Well, a good guy in a cartoon often has a strong sense of justice. They stand up for what's right, show compassion to those in need, and are not afraid to face challenges to do the right thing.
Perhaps the cartoon shows how the guy discovers the box and how it changes his life. Maybe it leads him to new places or introduces him to new friends.
Life as a guy in a cartoon is often wild and imaginative. He could have superpowers, encounter strange creatures, and go on epic quests. But it also might have its difficulties, like dealing with villains or finding true friends.