If FooFoo aged, I guess they'd be 14, but they don't. I made FooFoo back when I was in Uni, when I wanted to make a video game arcade art piece (it would have been a simple automaton), but never got the money/resources to do it.
Anyways, they're a bit of a bully, but they got a lot of things going on, including growth spurts and hormones, that's made them a little moody. Luckily, he has two very sweet friends, Bop and Pip (the heroes of the game) to help them cope.
Good for them.