I was mining when my pickaxe had an 8 in the corner, I shift-clicked and I got 1 pickaxe with the number 7 in the corner I kept doing it until I had 8 pickaxes! lol!
I think the game is great, but I think there should be better upgrades like
humans can't use the door opening ability or an upgrade where you can disable humans guns
I think it needs weapons like: Darn Zombies, it spawns all the zombies in the game and you can still spawn what you want! Or Super Speed, where you go 10 times the speed of the humans. Or they could put multiplayer on it.
That's peculiar, haha.