It is entirely possible that this game by Arkadiusz Lubaszka (programming, graphics) and Michał Radecki (music; he also wrote the music for Sudoku Sweep) is the first Ataxx clone on any 8-bit platform, ever (apart from Spot on the Gameboy, which isn't really a clone; and the CPC/ZX versions of Infection, which are not clones either, and were not officially released).
By design, Klony is an exact remake of the 1990 Leland arcade machine that gave the genre its name, exact as far as platform restrictions allowed. The enemies look surprisingly good in monochrome.
