Has small built-in debugger. Allows to select between VGA and EGA modes. Both Cursor and Kempston Joysticks are emulated by cursor keys. Kempston FIRE button is emulated with ALT . Works in either CGA or EGA mode.
Stores files in so-called .SPC or .ZX format.
Each such file is an exact image of corresponding tape, with blocks written into the file one after another. Thus, .ZX file may contain several games. Uses .SP format for snapshots. These are physically files. All system messages are in Polish.