▁the ▁W asp , ▁Qu icks il ver , ▁Wonder ▁Man , ▁and ▁Nam or ▁the ▁Sub - Mar iner , ▁appear ▁when ▁special ▁power - ups ▁are ▁collected , ▁allowing ▁those ▁characters ▁to ▁tempor arily ▁assist ▁the ▁players ' ▁characters . ▁ ▁Most ▁game ▁levels ▁feature ▁side - scroll ing ▁fighting , ▁with ▁free ▁movement ▁as ▁in ▁traditional ▁ar cade ▁b raw lers . ▁Occ asion ally , ▁players ▁take ▁flight ▁for ▁side - scroll ing ▁flying ▁& ▁shooting ▁sequences ; ▁Iron ▁Man ▁and ▁V ision ▁fly ▁on ▁their ▁own , ▁while ▁Captain ▁America ▁and ▁Haw key e ▁use ▁flying ▁machines . ▁ ▁Vers ions ▁ ▁The ▁original ▁ar cade ▁game ▁was ▁sold ▁in ▁two ▁forms . ▁One ▁version ▁allowed ▁four ▁players ▁to ▁play ▁simultaneously , ▁with ▁each ▁player ▁position ▁cont rolling ▁a ▁specific ▁character . ▁An ▁alternate ▁version ▁featured ▁two - player ▁game play , ▁with ▁players ▁able ▁to ▁select ▁from ▁any ▁of ▁the ▁available ▁four ▁characters . ▁ ▁Port s ▁and ▁related ▁releases ▁Data ▁East ▁released ▁a ▁home ▁version ▁of ▁the ▁game ▁in ▁North ▁America ▁for ▁the ▁S ega ▁Gen esis ▁co - develop ed ▁with ▁IS CO / Oper a ▁House . ▁This ▁version ▁was ▁published ▁in ▁Europe ▁by ▁S ega ▁for ▁the ▁M ega ▁Drive . ▁The ▁game ▁was ▁later ▁lic ensed ▁to ▁M inds cape , ▁who ▁released ▁its ▁own ▁ports ▁of ▁the ▁ar cade ▁game ▁for ▁the ▁Super ▁N ES , ▁Game ▁Boy ▁and ▁Game ▁G ear . ▁The ▁versions ▁published ▁by ▁M inds cape ▁were