Steve still acts like a normal monkey. That means he eats whatever he can put in his mouth, smashes suff and throws poop. Even though he only speaks the occasional word, Flint considers his mokey-pal a buddy.
Sam has just arrived in Swallow Falls and, as the new girl, she just wants to fit into her surroundings. Sam also wants to be a reporter and works for the school's news channel.
Everything Flint invents, he does with the certitude that it will make Swallow Falls a more exciting place. Which it does, but usually in an Oh-My-God-that-building-is-going-toblow-up sort of way!