Awesome little game! I played the original DX way back when, but had no idea that this existed prior. Very NES like experience - I enjoy it a lot!
Bit of a weirder question though - as lightweight as this game seems to be, I'd love to see if I can get it running on a portable gaming device. I've been tinkering around with a Funkey S, which is a nice open source project for a Linux based emulator device that's been around for a good few years (basically a keychain sized gameboy advance with the clamshell design that is capable of emulating up thru PS1 - I do recommend it if you can spare the cash for one, they're very entertaining). I noticed that there was a Linux arm upload here, so I wanted to see how feasible it was.
I'm very much a newbie with Linux still, but from what I could figure out online, it should stand a strong chance of being compatible, with the main hurdle besides maybe controler support being that the Funkey S uses a 32 bit CPU (ARMv7-A specifically I think) whereas the game seems to be compiled for 64 bit CPUs. The Funkey S project documentation also provides an SDK specifically for cross-compiling Linux applications against the libraries available on FunKey OS. I did try the rasberry pi version since that seems to already be compiled for 32 bit CPUs, but ran into a few different errors that seemed to revolve around missing libraries that are normally native to the Pi.
With my rather limited knowledge I have no idea how much effort any of this porting/conversion/recompiling would take, so really if it's anything more than tweaking a few settings in your compiler then I totally understand if this is WAY too niche to be worth the time investment. It looked promising from what I could tell though, so figured I could at least ask the dev for their thoughts!
Either way thanks for a fun game :)