Yes you can but it is a series
Not really. The campaign will still not make sense, even if you played the first Modern Warfare.
No
Yes, a keyboard is necessary to play Modern Warfare 2 on PC, however you cannot use a keyboard to play Modern Warfare 2 on PlayStation 3 nor Xbox 360.
modern warfare 2 is the sequel to the first mw and the reflex is the first modern warfare but a wii version
It not a part of Call of Duty Modern Warfare 2
Call of Duty Modern Warfare came before Call of Duty Modern Warfare 2
None. the first ones are in Modern Warfare 2.
No they are two diffrent games.
Yes, it's on ds which you can play on dsi, it is calledCall of Duty: Modern Warfare Mobilizedf
You don't play...
and strings
Go to the main menu and select Multiplayer... Then Play Online...