In fact, in the game, from time to time, we will encounter the method of obtaining commemorative coins in the dead zone Zero Kosaka. In fact, there is no need to worry, just these few small steps can solve this problem.
Answer: Just find Kosaka in the machine repair area at the old site of the Black Goose construction site and help him.
1. After entering the game, adjust the game time to Friday daytime.
2. Use teleportation to reach the mechanical repair area of the old Bieyan construction site , and have a conversation with Gao Ban at the location shown in the picture.
3. Listen to what the boss says and help him solve problems to get rewards.
4. Finally, have a conversation with Gao Ban again . After the conversation, you can get Gao Ban's commemorative coins.