UNDER A NEW BYDO THREAT, EARTH RETALIATESIt was believed on Earth that the deadly BYDO Empire had been destroyed--but now they've returned, as nasty as ever. Their ships and armies are more powerful than before, and Earth will surely be conquered unless the new R-90 ship can destroy them. Powered with engines that launch it into different dimensions, and armed with the Round, Shadow, and Cyclone Forces, R-90 has what it takes to wipe out the BYDO threat. Then, the BYDO mother ship must be found and destroyed to entirely erase the species from our galaxy.

Released in 1993 for the SNES. It's developed by Tamtex and published by Iremand supports up to 2 players at the same time. Also known as Āru Taipu Surī: Za Sādo Raitoningu in Japan.