Arcade Game Designer (documentation of AGD) is a tool by Jonathan Cauldwell to make games on ZX Spectrum and lately on Amstrad CPC, without any knowing of programmation. The games created wont scroll the entire screen : they are static. There is also a PC tool : TommyGun.AGD to make the games, working only with the ZX Spectrum AGD version only at the moment.

Check the youtube video of an AGD game : Donkey Kong Reloaded.