Do it in turbo mode. It will increase the speed of ore production. You can summon miners (for some reason) with the green button. Take the ores you see over there and collect money. With the money you get, you can use the upgrade shop to upgrade various things. See below for details. (From left) Increase the attack power of your pickaxe. Hire a miner. Increase the speed of your miner. Increases HP. Slows down the speed of return. You can also pay money to hire a special person. 1000・・・・Chainsaw Weak attack power, but fast attack speed, no return, strong character. Only four people can play. 3000・・・・Drill trolley It is a versatile trolley with high attack power and can be used widely from the beginning to the end of the game. 20 seconds of digging and it will return home. You can summon as many as you like. 10,000・・・C4 A so-so character that deals heavy damage with an explosion once a minute. 5 units can be summoned. 100000・・・Commander When the miners return, this is the most powerful character, and will summon them again (devilish). However, the problem is that if you raise the HP too much, you will not need it.
