I went ahead and picked up Devil's Crush, since it's the only one I would regret missing if Konami pulls this app from the store at some point. Also as a sort of last chance for the app.
First game had me floundering a bit, thinking this was going to be yet another bad experience. First ball lost. Second ball lost. Bumpers come out. But on the third ball it started to click for me. This is 100% playable. No precision is required on the directional pad to operate the left flipper, so you're basically just tapping the lower left of the screen for left flipper, and lower right (button) for right flipper. 2nd game lasted 15-20 minutes, score of 10,373,000. Doh, forgot to save so score is lost.