Granny Pills: Defend Cactuses

2075 year. After the extraterrestrial invasion, nearly no life or oxygen remained on Earth. The only plants that survived were cacti. The aliens aim to destroy or steal all of the cacti in order to end life on Earth. The brave Granny who grows her cactuses on the road (to receive light rays) should keep them safe from aliens. She learnt that the aliens are scared of human medications, so she carries a large supply of them, as well as a loaded shotgun in case of an emergency. Help Diana and her cactuses restore life on Earth and drive away the aliens!