▁quickly . ▁Un ique ▁for ▁a ▁scrolling ▁shoot er ▁game , ▁all ▁power - ups ▁can ▁be ▁target ed , ▁shot , ▁and ▁b ounced ▁off ▁the ▁sides ▁of ▁a ▁level , ▁making ▁them ▁more ▁difficult ▁to ▁ac quire ▁for ▁other ▁players . ▁ ▁Multi player ▁Gy rost arr ▁is ▁capable ▁of ▁supporting ▁up ▁to ▁four ▁players ▁for ▁multi player ▁game play . ▁Multi player ▁can ▁be ▁co oper ative ▁or ▁compet itive , ▁depending ▁on ▁the ▁actions ▁of ▁the ▁players . ▁This ▁allows ▁for ▁players ▁to ▁either ▁work ▁together ▁to ▁complete ▁a ▁level , ▁or ▁to ▁ham per ▁each ▁other ' s ▁performance . ▁Player ▁ship ▁positions ▁are ▁st agger ed ▁across ▁the ▁track ▁of ▁a ▁level ; ▁collect ing ▁a ▁power - up ▁moves ▁a ▁player ▁to ▁the ▁last ▁position , ▁while ▁collect ing ▁energy ▁will ▁eventually ▁move ▁player ▁to ▁the ▁front . ▁ ▁Re ception ▁ ▁Gy rost arr ▁received ▁mixed ▁reviews ▁upon ▁its ▁release . ▁I GN ▁gave ▁Gy rost arr ▁an ▁average ▁rating , ▁saying ▁that ▁the ▁graphics ▁were ▁better ▁than ▁many ▁other ▁W ii W are ▁games ▁and ▁pra ising ▁the ▁co - op ▁experience ▁as ▁being ▁fun . ▁Neg ative ▁aspects ▁of ▁the ▁game ▁were ▁identified ▁as ▁a ▁lack ▁of ▁challenge ▁in ▁the ▁levels ▁and ▁that ▁the ▁game ' s ▁sense ▁of ▁speed ▁was ▁sever ely ▁lack ing , ▁with ▁levels ▁starting ▁out ▁slowly ▁and ▁only ▁speed ing ▁up ▁near ▁the ▁very ▁end . ▁Over all , ▁Gy rost arr ▁was ▁called ▁" a ▁pretty ▁fun