Compatibility fixes for modern hardware

Zone Runner 2 is an old Multimedia Fusion game, and has a few issues on modern computers. Fortunately, they are easy to fix.

1. Open task manager and set the affinity of zonerunner2.exe to only use one core. This fixes the sound bug that would otherwise make the game very laggy.

2. Press Alt + Enter to run the game in windowed mode. This fixes a graphical glitch where black rectangles cover the screen on some larger levels. The game window will be very tiny on modern monitors, but thankfully there's a fix for that too.

3. Open the Magnifier app. This will allow you to zoom in on the game window to bring it to a more tolerable size. The Magnifier comes with most Windows operating systems.
4. If any other bugs occur, you can try pressing F2 to restart the game. This is also useful for quicker restarts when doing runs.