Screen cropping madness
The original arcade video was 4:3 aspect. Unfortunately, Digital Leisure has cropped the video to 16:9 in this version: to avoid pillarboxing on modern displays, Digital Leisure has simply cut off the top and bottom of video you otherwise should be seeing.
Also, on my 16:10 display, even the cropped video should letterbox a little bit on the top and bottom of the screen. However, the game makes use of the entire display. This suggests that the game is cropping the video yet again for a "full screen" effect.
Digital Leisure did the same thing with the Blu-ray release of Dragon's Lair which was also unfortuate (particular for the price of the BD). The did manage to get it right for the Blu-ray release of Space Ace (giving the viewer the option of either 16:9 or 4:3 video).
And, oh...rebindable keys? Nadda.
Save your money unless and until Digital Leisure decides to start giving this title some proper support.