▁uses ▁the ▁same ▁engine ▁and ▁shares ▁similar ▁game play ▁tra its ▁with ▁Ge ograph ▁Se al , ▁a ▁ 3 D ▁platform ▁game ▁released ▁for ▁the ▁Sh arp ▁X 6 8 0 0 0 ▁home ▁computer ▁the ▁previous ▁year ▁by ▁Ex act . ▁After ▁seeing ▁Ge ograph ▁Se al ▁and ▁real ising ▁the ▁potential ▁in ▁their ▁game ▁design , ▁Sony ' s ▁director ▁of ▁entertain ment ▁in ▁Japan , ▁Ko ji ▁T ada , ▁pa ired ▁Ex act ▁with ▁Ult ra ▁to ▁develop ▁a ▁new ▁game ▁for ▁the ▁up coming ▁Play Station ▁console . ▁T ada ▁replaced ▁H iro y uki ▁Sa eg usa ▁as ▁director ▁of ▁the ▁game , ▁although ▁he ▁had ▁kept ▁all ▁key ▁Ex act ▁staff ▁to ▁work ▁on ▁the ▁project . ▁ ▁The ▁initial ▁development ▁was ▁split ▁into ▁two ▁phases . ▁Ex act ▁developed ▁the ▁game ▁engine ▁and ▁its ▁game play ; ▁Ult ra ▁designed ▁the ▁story ▁and ▁ 3 D ▁cut sc enes , ▁and ▁created ▁characters ▁such ▁as ▁the ▁mechanical ▁rabb it ▁protagon ist , ▁Rob bit . ▁Ult ra ▁felt ▁they ▁needed ▁to ▁depart ▁from ▁the ▁" st ere ot yp ical ▁science ▁fiction ▁v ibe " ▁that ▁included ▁the ▁usual ▁" space ▁r anger " ▁or ▁double ▁agent ▁protagon ists . ▁To ▁create ▁a ▁sense ▁of ▁individual ity ▁among ▁platform ▁games , ▁the ▁developers ▁implemented ▁a ▁dynamic ▁camera ▁that ▁would ▁automatically ▁pan ▁down ▁towards ▁the ▁shadow ▁of ▁Rob bit ▁on ▁the ▁ground ▁during ▁large ▁j umps , ▁allowing ▁players ▁to ▁carefully ▁line ▁up ▁their ▁land