GM has decided to look into Lua scripting in VBA. It's a feature found in VBA-RR. Basically, this creates sort of a sub-program taht runs with the emulator and allows for some once-unimaginable results. It's nothing short of pure magic.
Even useless effects like the one below can be done in real-time.
Lua scripting has almost unlimited potential. It just needs to be put towards something useful, if there still is anything left.