One of the disadvantages of the App Store's ludicrously fast turnover is that great games can be missed in the rush. Take, for example, this manic satirical puzzle game that debuted way back in the dark and primitives days of 2009.
But wait. Satirical? Yep, Jetset is a game with a point to make, and is aimed at an audience likely to appreciate its jabs. This is a game about the lunacy of airport security, and the post-9/11 paranoia that has seen bizarre and intrusive restrictions implemented, lifted and implemented again at airports around the world.
That, by a happy coincidence, is also the driving gameplay mechanic. You're in charge of a security checkpoint and must clear people through as quickly as possible. Allow the line to reach the door and it's game over. Chances are, that won't happen. You're far more likely to fail because of the inexplicable changes to the security criteria you're trying to enforce.