In Japan, R-Type for PC Engine was released in two parts: R-Type I and R-Type II. This game contained the first 4 stages, and R-Type II would contain the last 4 stages.
The US version of this doesn't have infinite continues, the maximum number using cheats seems to be 21. In comparison, the Japanese version allows infinite continues from Part II, which might actually be a good point to start.
This game runs at 60 FPS, actually slightly faster than the original game, which ran at 55 FPS.
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