Gameplay takes the form of a simple shooting gallery, with still images replacing Kojima's famously lengthy cutscenes. You use your finger to adjust your aim and tap the screen to shoot, and zoom in and out by pinching the screen. The app was released with eight missions, with later updates bringing the total to twenty. A free "Lite" version is also available.Drebin's Shop50 different iPhone wallpapers can be bought with DP which is earned after finishing a mission; the higher your rank, the more DP you earn.The wallpapers are;3D ART (1)OLD SNAKE #1DP: 25003D ART (2)OTACONDP: 25003D ART (3)METAL GEAR Mk.IIDP: 500003D ART (4)DREBINDP: 50003D ART (5)MERYL SILVERBURGHDP: 75003D ART (6)LIQUID OCELOT #1DP: 75003D ART (7)NAOMI HUNTERDP: 250003D ART (8)LAUGHING OCTOPUSDP: 250003D ART (9)GEKKODP: 100003D ART (10)RAIDEN #1DP: 250003D ART (11)SUNNYDP: 1000003D ART (12)BIG MAMADP: 50003D ART (13)RAGING RAVENDP: 250003D ART (14)DWARF GEKKODP: 100003D ART (15)JOHNNYDP: 50003D ART (16)CRYING WOLFDP: 250003D ART (17)VAMPDP: 100003D ART (18)METAL GEAR REXDP: 500003D ART (19)METAL GEAR RAYDP: 500003D ART (20)MEI LINGDP: 500003D ART (21)OLD SNAKE #2DP: 100003D ART (22)RAIDEN #2DP: 250003D ART (23)SCREAMING MANTISDP: 250003D ART (24)HAVEN TROOPERDP: 100003D ART (25)LIQUID OCELOT #2DP: 100003D ART (26)SOLID EYE #1DP: 500003D ART (27)SOLID EYE #2DP: 50000DRAWINGS (28)HEROES #1DP: 50000DRAWINGS (29)HEROES #2DP: 50000DRAWINGS (30)SNAKEDP: 25000DRAWINGS (31)MERYLDP: 25000DRAWINGS (32)RAIDENDP: 10000DRAWINGS (33)LIQUIDDP: 10000DRAWINGS (34)VAMPDP: 25000DRAWINGS (35)OCTOPUSDP: 25000DRAWINGS (36)RAVENDP: 25000DRAWINGS (37)WOLFDP: 25000DRAWINGS (38)MANTISDP: 25000DRAWINGS (39)MEI LINGDP: 50000DRAWINGS (40)UNKNOWNDP: ????DRAWINGS (41)UNKNOWNDP: ????OTHER (42)METAL GEAR DDP: 5000OTHER (43)SOLITON RADARDP: 5000OTHER (44)WORDSDP: 5000OTHER (45)INSIGNIAOTHER (46)SILHOUETTEDP: 5000OTHER (47)PSYCHEDELICDP: 5000OTHER (48)DRUM CANDP: 10000OTHER (49)C BOXDP: 10000OTHER (50)UNKNOWNDP: ????
