Use space to beat up the chest, it has more health than the real alien chest so you have more pets equipped.
There are 39 pets: 2 lumi axolotls, 3 astra axolotls, 2 404 demons, 6 hellish axolotls, 2 storm axolotls, 1 galaxy fox, 1 santa paws, 4 empryen axolotl, 3 haxolotls, 2 glitched immortuuses, 1 hydra axolotl, 2 haxigators, 3 midnight axolotls and 4 nature axolotls.
