What Could Have Been: A port of the game for PlayStation 4 was in the works by M2 as part of their M2 ShotTriggers lineup, but they ran into performance problems attempting to emulate the game's hardware on itnote M2STG ports aim to emulate the original hardware, not just transplant the game's assets to code that natively runs on the target platform. Emulating hardware is always more intensive on the host hardware that's doing it than running code designed for the host hardware itself. so they nixed the project.