One of my all-tine favorite games is Pinball Dreams. The original was on Amiga computers, long out of manufacture; however, the game was ported to iOS and I bought it for my iPhone. I enjoyed it for years, but an iOS update broke it a long time ago. I was about to finally delete it from my phone (having periodically checked it over the years), but one more check revealed that it is working again. Hooray!
There was a free trial version, which is a fine and fun game in its own right, but the full version gives you all 4 pinball tables. My favorite, Nightmare is pictured below.
With the iPhone 7, the entire screen is visible without scrolling. Cool!