>>533569828
yeah it's this one
get the blow torch from the garage for starters and then open a 1m gold vault to get the plasma cannon, that way you can use the chat trick to afk it
the only thing stopping you from buying the third floor is the conveyor belt on second floor, it costs 120k diamonds so go kill some npcs to farm that when you see it's the last thing you need, then it's smooth farming