Have you guys seen this? It's quite possibly the most awesome thing ever. You can play any maze, and you can even create and play your own. And the coolest part is they're all connected. You can actually travel in and out of adjacent mazes.
Anywho, I've made 3 so far. The first is silly, and the second is pretty simple. The third is a flippin monster, though. I can't beat it myself (though to be honest I'm pretty horrible at pac-man).