Welcome to the caverns!
This is a short video of the Atari ST emulating the ZX Spectrum and running Matthew Smith's classic platformer. Please note, that this emulator struggles on a stock 8MHz ST when it comes to audio and scrolling the screen. Of course, this game doesn't scroll but the background tune pushes its luck, so I turned it off for better performance (it's then at the speed of the original, almost). You can find out more about Speccy Emulator by clicking here. Enjoy my video recording :)
