Grand Theft Auto: Mission Pack #1 - London 1969 gameplay, played with DOSBox. I'm running the 3Dfx version (on lowest resolution for recording purposes) using gulikoza's DOSBox build. The 3Dfx version runs without any problems out of the box, no additional tweaking required. You can't run the 3Dfx version on the official DOSBox build, it doesn't have 3Dfx support (yet).