Duet is an object avoidance arcade game that is free to play but includes in app purchases.
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Pro Simple yet interesting graphics
At a first glance, the graphics of Duet appear rather simplistic, but on closer inspection one notices how much detail there is, from the moving background to the high resolution support.
Pro Excellent soundtrack
Pro Can be played in the player's preferred orientation
Whether the player prefers playing in portrait view or landscape Duet supports it.
Pro Supports immersive mode
Duet supports immersive mode on Android devices that are on 4.4+ (KitKat or above). Immersive Mode allows you to 'hide' the on-screen navigation buttons and the top status bar in order to get a full screen experience.
Pro Can be played offline
Duet does not require an internet connection for the game to be played, making it an ideal game to play when there is no internet connection available.
Con Extremely difficult
Even though the levels are only 20 seconds long, the difficulty of each level is so high that it takes several attempts before a stage is completed.