▁the ▁future , ▁where ▁an ▁al ien ▁race ▁led ▁by ▁Ga ud y ▁have ▁inv aded ▁the ▁human - control led ▁location , ▁players ▁assume ▁the ▁role ▁of ▁an ▁Al lied ▁League ▁of ▁Cos mic ▁Nations ▁( AL CON ) ▁f ighter ▁pilot ▁taking ▁control ▁of ▁the ▁SW 4 7 5 ▁space ▁f ighter ▁craft ▁in ▁a ▁effort ▁to ▁counter att ack ▁the ▁inv aders . ▁Initial ly ▁launched ▁for ▁the ▁arc ades , ▁the ▁game ▁was ▁later ▁port ed ▁to ▁other ▁micro comput er ▁and ▁console ▁platforms ▁by ▁various ▁third - party ▁developers , ▁with ▁each ▁one ▁featuring ▁several ▁changes ▁or ▁add itions ▁compared ▁to ▁the ▁original ▁release . ▁ ▁S lap ▁Fight ▁proved ▁to ▁be ▁popular ▁for ▁To ap lan ▁among ▁arc ades ▁players ▁despite ▁a ▁low ▁number ▁of ▁ar cade ▁bo ards ▁manufact ured ▁in ▁Japan , ▁however ▁it ▁was ▁met ▁with ▁mixed ▁reception ▁from ▁video ▁game ▁mag az ines ▁across ▁western ▁regions , ▁specifically ▁the ▁home ▁convers ions . ▁Although ▁it ▁never ▁received ▁a ▁direct ▁sequ el , ▁the ▁game ' s ▁ideas ▁and ▁weapon ▁system ▁were ▁later ▁inherited ▁by ▁both ▁Tru xt on ▁and ▁Gr ind ▁Storm er , ▁with ▁the ▁latter ▁being ▁regarded ▁as ▁its ▁spiritual ▁successor . ▁The ▁rights ▁to ▁the ▁title ▁are ▁owned ▁by ▁T ats uj in , ▁a ▁Japanese ▁company ▁formed ▁by ▁Mas ah iro ▁Y uge . ▁ ▁Game play ▁▁ ▁S lap ▁Fight ▁is ▁a ▁science ▁fiction - th emed ▁vert ically ▁scrolling ▁shoot ▁' em ▁up ▁game ▁rem in is