To do this, you need two things. The first is an automatic clicker, the second is ar2 and a lot of orbs to it. With the help of an autolicker, we create hostile NPCs (like combines), create as many as your device pulls (when you create an NPC with an autolicker, you need to look at the wall so that all the NPCs appear in the wall), you need to shoot at this pile with a orb. You can get level 100 in five minutes. You can buy more weapons and equipment for each level up to 16 then it's just not necessary at the moment.I do not advise you to do this because it is not interesting