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Defender

MobyRank MobyScore
Commodore 64
...
...
TI-99/4A
...
4.3
Atari 2600
...
3.8

Apple II
Business Model Commercial
Minimum CPU Class Required Apple II
Media Type 5.25" Floppy Disk
Video Modes Supported Hi-Res
Number of Players Supported 1-2 Players

Arcade
Video Modes Supported Color, Landscape, Raster
Input Devices Supported 5 buttons
Number of Players: Offline 1-2 Players

Atari 2600
Input Devices Supported Joystick (Digital)
Multiplayer Options Hot Seat
Number of Players Supported 1-2 Players

Atari 5200
Input Devices Supported Joystick (Analog), Trak-Ball
Number of Players Supported 1-2 Players

Atari 8-bit
Supported Systems/Models Atari 400/800 Series 
Minimum RAM Required 16 KB
Media Type Cartridge
Input Devices Supported Joystick (Digital)
Number of Players: Offline 1-2 Players

ColecoVision
Number of Players Supported 1-2 Players

Commodore 64
Media Type Cartridge

Intellivision
Number of Players Supported 1 Player

PC Booter
Business Model Commercial
Minimum CPU Class Required 8088 / 8086
Minimum RAM Required 128 KB
Media Type 5.25" Floppy Disk
Video Modes Supported CGA
Sound Devices Supported PC Speaker
Input Devices Supported Joystick (Analog), Keyboard
Number of Players Supported 1-2 Players

TI-99/4A
Minimum CPU Class Required TI-99/4a
Media Type Cartridge

VIC-20
Media Type Cartridge
Input Devices Supported Joystick (Digital)
Number of Players Supported 1-2 Players

Xbox 360
Media Type Download
Number of Players: Offline 1-2 Players
Number of Players: Co-Op 2 Players
Number of Players: Online 2 Players
Miscellaneous Attributes Xbox Live Arcade
Xbox/Windows Live Online Multiplayer, Scoreboard/Leaderboard


Technical information contributed by Trixter (8743), chirinea (33100), Alaka (29986), Martin Smith (63198), Pseudo_Intellectual (43888), NĂ©lio (1837), Servo (55897), joyvalley (148923) and Big John WV (25291)