There is an exciting snowball fight. Many people take direct hits to the face/torso.
In one scene, an elf gets crushed by Buddy, but it's played for laughs.
Buddy gets attacked by a raccoon. However, the attack itself is offscreen.
There is several instances of mild, cartoonish violence/action in this movie, but they aren't really threatening, and no one is injured.
Buddy gets into a fight with the Santa at the department store, because he believes he's an imposter. There is some punching and kicking, but no blood or gore.
Buddy sees a ghost writer with dwarfism in his father's office and truly believes that he is an elf. This makes the man very angry, and he runs across the table and attacks Buddy. There is no blood, however. In the deleted scenes, the man slams Buddy's head repeatedly against an object, but this was removed from the final cut for obvious reasons.
While in the doctor's office, Buddy receives a finger prick. He screams, but there is no blood. This is made for comedic purposes.