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Adrian Grucza (commonly known as "Badja") was a one-man programming team for the TI-83(+) calculators. He created several high-quality, innovative games including Lotus Turbo Challenge, Crates 3D, Laser Mayhem, Labyrinth, Uncle Worm, and Elements.
Many of Adrian's games were featured in ticalc.org news articles, and some also won the POTM and POTY awards. His programs were ported to the other TI calculators by Sam Heald, Ahmed El-Helw, Andreas Finne and others. Like other TI programmers, he started out with TI-Basic before making the jump to assembly.
See his ticalc.org profile for a complete list of his programs.
His site was one of the sites that got hosting through Dimension-TI.