As straightforward as you can get, sometimes it may be a little tough to make it so all of the happy buds don't fall down the pit, but there should be enough of them that it shouldn't be too much of a problem.
I wouldn't call this bowling, probably more like that one game you play at a carnival that you toss a ping pong ball at a bunch of cups, then again a level title of "Bud That one game you play at a carnival that you toss a ping pong ball at a bunch of cups" might be a bit long...