Set it on hard so you need to complete the targets in order rather that randomly.

I've had mine for years, have it set normal and have seen it rolled only a few times. It is real fast, nasty and unforgiving!

Factory setting also includes a continue feature which is dumb and needs to be disabled, along with extra balls. I use the suggested Novelty settings and medium difficulty, which makes it brutal yet fun enough for me.

In my opinion, if you're still getting to multiball every game, set it hard.