9 . ▁ ▁The ▁Earth ▁Federal ▁Government ▁was ▁established , ▁linking ▁the ▁people ▁with ▁a ▁common ▁government ▁against ▁other ▁species . ▁As ▁part ▁of ▁this ▁new ▁addition ▁and ▁to ▁defend ▁the ▁human ▁race ' s ▁peace ▁and ▁safety , ▁the ▁Earth ▁Federal ▁Army ▁was ▁also ▁created ." ▁ ▁" The ▁army ▁went ▁on ▁the ▁off ensive , ▁and ▁attacked ▁a ▁star ▁known ▁as ▁' T ur in .' ▁However , ▁the ▁Earth ▁Federal ▁Army ▁was ▁no ▁match ▁for ▁the ▁over wh el ming ▁combat ▁power ▁of ▁Tur in , ▁and ▁Earth ' s ▁fate ▁seemed ▁se aled . ▁As ▁Earth ' s ▁last ▁chance , ▁a ▁top - secret ▁mobile ▁unit ▁developed ▁a ▁very ▁advanced ▁space ▁f ighter ▁in ▁Earth ' s ▁last ▁fort ification . ▁F lying ▁with ▁the ▁moth ership , ▁' M other ▁A ten a ', ▁it ▁arrived ▁at ▁Tur in ' s ▁solar ▁system ▁as ▁the ▁last ▁chance ▁for ▁a ▁violent ▁and ▁final ▁attack ▁on ▁the ▁Tur in ▁forces . ▁This ▁advanced ▁space craft , ▁and ▁Earth ' s ▁last ▁hope ▁for ▁surv ival , ▁is ▁code - named ▁' S olar ▁St ri ker ' ." ▁ ▁Game play ▁ ▁The ▁player ▁controls ▁the ▁advanced ▁space ▁f ighter , ▁code - named ▁Sol ar ▁St ri ker . ▁There ▁are ▁six ▁levels ▁of ▁play ▁against ▁enemies ▁known ▁as ▁the ▁forces ▁of ▁Ret icul on . ▁These ▁enemies ▁appear ▁from ▁the ▁top ▁of ▁the ▁screen . ▁The ▁player ▁can ▁am ass ▁power - ups ▁by ▁shooting ▁special ▁ships