Alien Threat Free

2040 Flying saucers are coming to invade the earth. You must infiltrate in each one of them and disable their energy source, by removing the main energy cell, to save the earth.You need to move the cells around, either up or down or side to side, depending if the cell is vertical or horizontal. The game mechanics is very similar to "unblock me" or "rush hour".Complete game with 2040 puzzles and solutions, no in-app purchases.