End Task in Windows 10 with No Mouse

A while back I was running Unreal Tournament 2004 in a Windows 10 Boot Camp install on a 2017 Intel-powered MacBook Pro, and the game locked up. I was able to bring up Task Manager via Ctrl+Shift+Esc, but the mouse cursor I was using a basic Bluetooth-connected mouse was not visible (possibly captured by the game still?).…