Hmmm it's rare (owned a C64 from 83 until today).
Plenty of C64 games had lovely parallax scrolling. ST por...I mean Amiga games rarely had proper full screen parallax....just a copperlist.
Sidewinder's loading music = soundtrack from C64 game called Panther....sounds better on C64.
Others claim Gianna Sisters on C64 but I don't like that game.
Defender of the Crown on C64 has better gameplay (but so does PC and ST version)