What are these 5 or 3 round metal design on the playfield?Updated 14 days ago

In our 2024 model, we introduced a difficulty level feature on the machine. This is represented by the five round humps on the playfield. It makes the coins slide on top of each other easily. You can remove any of them to influence the game and its difficulty.  

Please note that our 2025 version has only 3 round metal designs for the difficulty level.