Ya Paper Soccer
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You can play or normal, small or big field, either classic or with half line. There is of course computer player - for some it may be challening but nothing is challenge for true champions.
Two-player can be played either on one device or via Bluetooth or wifi locally. Also added experimental support for Play Services multiplayer.
Parts of the source code, single player, are available on github: https://github.com/jdermont/YaPaperSoccer