In this post I go over what changed in the feat-4px-scroll-and-sprite-animation branch compared to the previous port version. The short version:

• Fine horizontal scroll at 4px per frame instead of character-based shifts.
• Bird sprite animation (alternating frames) for smoother motion.
• Render pipeline adjustments to avoid tearing: pre-calculation in screenBuffer and a single memcopy at the end of the frame.

Porting a compact Sinclair BASIC to Boriel BASIC is a lesson in constraint translation: the gameplay ideas are tiny and clear, but timing, memory layout and a few helper primitives change how you implement them. I focused on three goals:

• preserve the original feel (timing, pipe rhythm)
• keep code modular and readable for learners
• make minimal runtime changes where Boriel behaved differently

On April 24, 2026, the SuperDev talks took place in Granada, organized by the associations Granada Jam and Granada Gaming Festival. These talks were part of Ficzone, the largest event in southern Spain focused on cinema, comics, manga, and video games.