just a part of an actor collide

hi guys
i've a little probleme, i'm working on a game where a floor need to be destroy, so it perfectly work on the right and left but from up to down no: because the head of my "hero" touch the a part of the floor...
so, how can I separate the collide zone?
thx
i've a little probleme, i'm working on a game where a floor need to be destroy, so it perfectly work on the right and left but from up to down no: because the head of my "hero" touch the a part of the floor...
so, how can I separate the collide zone?
thx
Comments
Darren.
TY