Before understanding the repack, you need to understand the base software. TeknoParrot is not an emulator in the traditional sense (like MAME). It is a compatibility layer and a loader. It translates arcade hardware instructions (DirectX, OpenGL, XInput) into commands your Windows PC understands.
Virusman TeknoParrot Repack refers to a curated collection of arcade games specifically configured to run via the TeknoParrot virusman teknoparrot repack