I was a sucker of J2ME games on my childhood. And I'm still coming back to it these days, but not as much as I did that time. I've played plenty titles on the platform. Yeah, many of them sucks (due to its limitations), but it doesn't mean I wasn't having great time with some great games, mostly mobile ports, such as Assassin's Creed, Prince of Persia, etc.
But only two titles that keep me coming back: Galaxy on Fire 2 & EDGE(with EDGE Extended as a standalone expansion). These are the best & the most polished 3D games on J2ME, and I love them