Boot Camp ran more smoothly but required some extra effort during setup Parallels ran well enough on my MacBook, though playing the modestly demanding Cuphead smoothly required me to close all other apps in macOS. This eliminated VMware Fusion, which refused to run smoothly or allow the Windows Store (where I purchased Cuphead) to open. If the emulator could run on my aging machine, it could work practically anywhere, I figured. In order to get evidence that would help the most people, I decided that the tool should run on my five-year-old MacBook Pro.