Flawed, incomplete, class project?
The concept is quite simple, but the execution is poor and flawed. As another reviewer stated, there is more than one correct solution to puzzle 2, though the designer swears there is only one. If they cant get the tutorial programmed correctly, that doesnt leave much hope for the late boards.
There is also a move counter towards the bottom of the screen. The best way to reduce your moves is to memorize the board, not decipher it. Considering the title/purpose of the game, thats ... illogical.
Lastly, in a game of focus, there is a constant ad running at the bottom of the screen. You can pay $8 to remove it or you can find another free app. You will also be constantly asked to try one of the designers other games. Ive found them all to be just as boring and incomplete. Its as if these are all a students class projects.
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100 Logic Games - Time Killers, v1.39.3