Ok. I have the nes app from cydia on my iPad, iPod, & iPhone. The bombs don't work where they should on legend of Zelda (1st one) on my iPad, but do on iPod & iPhone. I want to beat the game since it's been ages since I played it on the original nes (yes I'm that old). Does anyone have a suggestion why it's not working on my iPad? The game seems to be working fine otherwise.

iPhone 4s (5.1.1)
iPad 1 (4.2.1)
iPod touch (the first one, it's a dinosaur, with old old iOS)

Many thanks!