We can officially call this "Pretty much it" as far as feedback's concerned. Nice that it only took 3 days to get any feedback. Good job I didn't ask for any donations!!

Anything extra can and will (time permitted!) be added onto this edition. It's nowhere NEAR as "hard-coded" as the original version. Although it is still all internal, it's much easier to add new things. Amazing what a whole recode can achieve, but annoying how, for the most part, it doesn't actually appear to have any visible additions what-so-ever!
So, yeah, if you'd like to throw about some ideas for other world-based extras, I'll be happy to hear them.
Taking out ice, and making the game more forgiving but always slidey? Honestly, I don't see that happening. Pretty much the whole challenge of the game rests on you messing it up! To add a safety net would make the whole game that much easier, and kill most of it's difficulty.
I suppose I could add an Easy mode, though. .. ?
At the moment the per-world things are per-world specific because of the Ice. Once the ice was drawn it was obvious that it needed to be skiddy, and the rest kinda fell into place from there..
Ideas evolved in this Socoder topic, last Friday (game was then released Tuesday! RapidDev!!! GO!)The "Neon" theme even actually has it's own slight rule, in that you can't see the fallen floor. That doesn't really help/hinder at all, but at least in the other modes you can see where the blue-ghost's going to stop. .. .. Oh, yeah, btw, the blue ghost walks, the red ghost floats.. I haven't mentioned that anywhere, have I!?
So, yeah, more rules would be nice but I'd like to level them out again.. Maybe more world with more rules, or even an extra 1 rule per world.. *shrugs*
Then once we're all powered up, we can start playing with bonuses, and perhaps a few pickups and things?
..
Like I said, though.. Time permitted! Still doing AGameAWeek here!