Ok, now I have one I can't remember the name to either!
I played it not too long ago and I remember it was suggested on this board.
Its a cutesy Japanese animation looking thing. Kinda like Pengo, or Puzzle Bobble characters.
You start up in a tree. I think you characters are a family of Opossums or something. I seem to remember balloons floating down (or up) and you have to shoot them to save your family... Wolves might have been the bad guys. I think it was a fairly popular game but the name escapes me now.