Like many duos, they should balance out each other, and tom and tom jr. is no exception. While tom is crazy and looney, tom jr is more calm and smooth-like. He's the strightman on what sence he's in. If sometime goes wrong, he'll try to fix it like most normal people would. That dones't mean he's a killjoy. He does like to play along with tom and betty's ideas and does like to help them out, until it incrases havoc.
Like tom, he has his love for things too. He loves video games. Not ALL video games, the good ones. Although he's crazy about his love like tom is for coke, he does get into it and would try his hardest to win the game and point out what's right and wrong about it.
He also has his love too. The new girl, Jade Bas-o-lock, one of betty's friends. Like tom jr, she also likes to point out rights and wrongs, but she,out of everyone in the show, is the smartest of them all. She's somewhat of a killjoy, but she does like to play along with what's happening, just to see what bizarre event will occur next. This being the best for jr, as he tries to make his move onto jade to make her happy.
Tom jr. Is the other half of a chemical to make it work. The soap of water, the lowfat chicken of soup, and he's the other brother in Tom bros. And why does he have no legs, something about deformed eggs, just don't question it.