Also, a lot of modern visual touches like lighting system upgrades, texture upgrades, ambient occlusion, and anisotropic filtering are available-but you can disable all of those. One of the 'enhancements' includes animation interpolation as an option for enemies, which famously ran at dinky frame rates in the original. The KEX Engine has been applied, which is a roundabout way of saying that Nightdive Studios (who worked on Quake 64's recent port, among other awesome callback FPS re-releases) has taken the original source code and opted for a faithful port of it across a ton of hardware and consoles. What are the actual enhancements apart from the expansions and multiplayer ?
