Yes , although it's more like climbing in general.
He can climb up lamp posts too and stuff like that.
The game plays like a cross between lord of the rings and Demon Stone.
In one battle with an ogre you have to stun it with the strong guy, then the little kid will climb up on it's head and cover it's eyes. Only thing is, if you dont take out the archers first (with one of the other kids) she will get shot off.
Trying to collect all the bonus items at the same time, not that easy.
AI is pretty horrible though but it's quite good multiplayer.