Having seen my brother play this, I was awed at the exceptional detail, and the real thought that had been put in to creating all the levels.
I've had Meltdown for a while, and I have to admit, it was quite funky, but if you're looking for a sophisticated game that, in turn, entertains, awes and frustrates the living hell out of you all in one, this is the perfect game.
There's a great amount of gameplay involved, because the maps are so diverse later in the game it could take a few tries to just establish a route, but the fun is limitless, if you've got the patience to really rack your brains for a soloution, and have the skill and determination needed to carry it all out. You won't be able to put it down until you've finished that one level.. Oh wait, the next one maybe.. Oh, go one, one more..
Overall, it's a great game, that takes ball-rolling labyrinth gaming, whacks it up a few thousand degrees, and twists it to the fourth dimension. If you can complete it fully, you could be hailed as a god. :D