Space Monsters have invaded the galaxy and it is your job to eradicate them by sending them into a blackhole. The puzzles are solved by swiping to direct the space monster in one of four directions. The monster continues moving in the same direction until it encounters a red giant. At that point the direction of the monster can be changed. By hitting the red giants in the proper sequence, eventually the monster can be directed into a black hole and sent to another galaxy.
If you like solving puzzles and games that involve strategic thinking you will like Space Monsters!