Video Modes Supported : VGA (Tweaked)
The IBM Video Graphics Array was capable of being controlled directly through registers instead of the BIOS. This enabled many interesting effects, like smoothly scrolling the screen, enhancing animation performance, or creating additional 256-color video modes like 320x400 or 320x240. Any game marked with this attribute "tweaks" VGA in some way to produce special effects, and may not display properly when running under Windows or an emulator.
VGA (Tweaked) is part of the Video Modes Supported category.