One version is common, at least one other version is rare
Notes
Developed by Electric Dreams and Factor 5.
Conversion Notes
Based on 1987 Irem coin-op. R-Type was released in Japan on 2 splitted HuCards and in the USA on one TurboChip card. The PC-Engine SCD-Rom version was released as "R-Type Complete CD".
The PSX version was released on the compilation "R-Types".