Here is one of the comments on a "Let's compare Strider" videos on Youtube.
For those that don't already know, "ha" sound is in the Japanese version of the game (including in the Megadrive and Japanese Arcade versions) and the Sharp x68 was a Japanese system (as well as the PCEngine of course).
Sharp ports of CPS1 games such as strider tend to be very close as the CPS1 hardware is based on the Sharp x68 hardware (but a bit better in some areas). The Sharp x68 was also literally used as the dev platform for CPS1 games too.
The Playstation version of the game is fantastic as long as you turn off the horrible remix soundtrack (so yes, the original unaltered arcade music is available and the music is also correct for levels 3 and 5, see below).
There's also an issue in the original Strider arcade board where the initial 1st level music plays on the 3rd and 5th levels. You'll see the music restarts at the points in those levels where it was supposed to change to something else as well. This led to a lot of people (at least in the US, not sure if this problem occurred in other countries) to assume that the Genesis port had added music. But later versions of the board had this issue corrected, with all the proper music for levels 3 and 5.
Unfortunately, the mame rom dump from the original flawed board is the most common and is used in all of the Capcom's Classics collections out there (or at least that I know of). I wish the devs at Capcom would finally figure out they can download the romset for the newer strider PCB and finally we can have the proper music. I grew up playing arcade Strider on a machine that didn't have this issue, so having the broken music drives me nuts and makes the game unplayable for me.
The rom is out there, I used to have it (and may still). I suspect it's pretty easy to find in any case. If I remember correctly, it may not be a stand alone romset as it's a revision.
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