Read the announcement article and download the game here and here. This was another one of those "games that announced 32x ports that was never released". The reports that the 32x version would've only had a palette change and more parallax scrolling are true, it doesn't look like there are other changes here except for that. I believe this is also a prototype of the final game as well, so there might be some differences besides that. Thanks to Radar/Junoman for this release. Enjoy!