I've created an optional updated version in which Ralph's movement is less predictable, alongside a few other difficulty-related changes. Not posting it as an update on itch in case people like the original version better, but you can get it here: https://drive.google.com/file/d/189xRO1HrxKGRdyizTjZ3PJwyd4SITNcn/view?usp=shari...
You still need the non-.exe files from the itch release.
Also, I do recommend the alternate low-pass filtered audio files.