The port uses the “hires” mode of the Apple II for the flashy graphics that were state of the art around 1980 or so. It’s not a copy of the full game – only the first and last levels, combined with Jonathan Coulton’s now classic ending theme, Still Alive.
https://hackaday.com/2017/01/12/port...-the-apple-ii/
http://www.deater.net/weave/vmwprod/portal/
https://www.scullinsteel.com/apple2/
https://hackaday.com/2016/12/17/appl...tten-in-basic/
https://hackaday.com/2017/01/12/port...-the-apple-ii/
http://www.deater.net/weave/vmwprod/portal/
https://www.scullinsteel.com/apple2/
https://hackaday.com/2016/12/17/appl...tten-in-basic/