Avoid shady “PC port” downloads from random sites – they’re usually just emulators repackaged with malware.
Playing a rhythm game designed for a D-pad and four face buttons on a keyboard is a rite of passage. Here is the optimal keybind for the unofficial PC port (via emulation): parappa the rapper pc port
The CD-ROM spins. A window opens—not fullscreen, but a resizable box on your desktop. The speakers crackle, and then: Chopping Beats on a Keyboard: The Complete History