The game Walking Monsters is a 2D shoot-em-up. Fight off monsters coming from all sides and see how far you can get.
You will be attacked from every direction. You will be attacked by zombies. They will go both forward and backward. On both sides, you will have to protect yourself. But danger will also come from heaven. From there, zombie bats and other things will attack you. Try to kill all of them and get as far as possible.
Have fun and good luck!