What is "bluppo"

Bluppo is a scrolling tile-based computer puzzle game developed in 1996 for MS-DOS PCs by Matija Tomaskovic and Bruno Babic. The game was published by Webfoot Technologies. Bluppo is a clone of Boulder Dash, and offers more features, including new gameplay ideas combined with improved graphics and sounds. The game was coded in more than 20,000 lines of assembly language code.