-Estimated achievement difficulty: 3/10
-Offline: 20/20 for 200
-Approximate amount of time to 1000
: 10-15 hours (4-5 hours for 160)
-Minimum number of playthroughs needed: 1 (mission select/ mode select).
-Number of missable achievements: None.
-Do cheat codes disable achievements? No codes.
-Does difficulty affect achievements? No.
-Glitchy achievements: Fixed!
-Extra equipment needed? No.
-Avatar Awards: No.
The angle of your screen, when loading the game, determines the angle at which your plane will fly straight. For instance, a friend of mine was mentioning that after takeoff, his plane would immediately crash into the ground. If this happens, press the back button on your device to pause the game, hold your phone in the desired playing position, press "calibrate," and then return to game. Voila!
The 500 Kills, 1,000 Kills, 5,000 Kills, and 10,000 Kills achievements were FIXED as of 08/03/11
The achievements can be gained in any order you want, other than the "x amount of kills" achievements, obviously. Select a game mode associated with an achievement (CTF, Defend the Base, etc.) and work towards the required goal (see guide for specifics). Playing through the campaign is not even necessary. Have fun!