The original Sharp X1 title was Exoa II Warroid.
To play an original level edited with Warroid Map Construction and saved in a tape, start the game, push ESC at the title to open the parameter screen then push SHIFT+T+A+P+E keys simultaneously until (TAPE) is displayed below WARROID. Push SPACE, then the title reappears so choose the number of players and push SPACE. The level is loaded then the match begins.