The condition by which the C64 title was finally approved was the removal of the BASIC programming language (though ironically it’s still shown in screen shots, even on the App Store).

Almost a year ago, [miker00lz] started a thread on the Arduino forums telling everyone about a 6502 emulator and BASIC interpreter ... an Arduino Due into a Commodore 64 emulator.

There is one BASIC command players can use for the Commodore 64 version, the Amstrad CPC version, and the ZX Spectrum version, though. This BASIC command should work for every version of the game.

could then be converted into BASIC code to run on the Commodore 64. That code, once run on the aged machine, created unique 8x8 images that were then expanded to 64x64 (4K eat your heart out ...