My old cellphone was a Nokia 5100, S40 Series. It had an 128x128px screen and ran on Nokia's MIDP 2.0 framework to J2ME.
(Yes, the 6 years of life were hard on it...)
But, well there was a time when I created a small game so I could learn J2ME.
I was just on my freshman year at ISEP, so my programming skills where still on it's early stages.
And the creativity wasn't much also...
But, the main idea was to learn J2ME and to create something other than academic projects that could be used in my life.
In order to show some images of that game, I downloaded an emulator from Nokia, but the standards have changed a lot since then (8 years of technology), so I couldn't get full compatibility.
The standard screen has a higher resolution and the OS is very different.