Only downsite of this game, is that it stores the savegame data inside flash, meaning that if you reformat windows, and you don't backup this (somehow) you'll have to restart from scratch. And thats a big problem considered this game is really hard and you don't just win the levels that easilly
Actually, you can back up your save. Just search for "N_v14b_userdata.sol".
It's usually in your application settings folder or somesuch.
Anyways, I really like this game too. I made a ton of levels for it,
but never really bothered uploading them... I might someday
.