Avatar is a great game, loved mine. At the sub $4k price point they realistically command they are a very underappreciated game. If I recall correctly it was Lyman Sheets / Lonnie Ropp on code, though it needed a final code revision or two still to truly finish it, imo. Lots of stacking and add-a-ball resurrections of ending multiballs to be had, etc. The final battle wizard mode is really well done too.