This version of Space Invaders DX shows a minor iteration from v2.0 of the Japanese version, suggesting incremental adjustments or bug fixes. While the exact nature of the changes is undocumented, it is consistent with Taito's approach to refining the game and improving player experience based on feedback or identified issues. The core gameplay remains consistent with the fundamental elements of the original Space Invaders.

Space Invaders DX (Japan, v2.1)

Space Invaders (TV Version rev 2)