AFTERPAD

Kingdom hearts. If it can play on PS2, I see no reason today's iPhone, iPad and Apple TV can't run games like Kingdom Hearts.

A lot of hope for new ports will probably come with iOS 10 as it will likely drop support for the A5 chips. With the App Store only allowing limitation by iOS version, developers will be able to safely assume the device has 1GB RAM and the speed of the A6 (iPhone 5/5c) as their lowest
common denominator.

Here's the PS2 specs:
PS2 (2000 - 155 million units sold)
CPU - 64-bit 'Emotion Engine' (299mhz)
GPU - 'Graphics Synthesizer' (147mhz)
System RAM - 32mb
Video RAM - 4mb
Resolution - 720x480 (SD), 1280x720 (HD - certain games only)
Media - 4.7gb DVD, 9gb dual-layer DVD

Here's the iPhone 5 specs
CPU - 32-bit Apple A6 (1.3GHz)
GPU - PowerVR SGX543 (200MHz)
System & Video RAM - 1GB shared memory
Resolution - 1136x640