1.Solve the problem of fatigue caused by continuous operation of the crown crane (redevelop and rebuild the coil and the outer protective sleeve of the coil);
2.Solve the same falling object trajectory of previous market procedures, and achieve any falling point within the whole chassis;
3.Create a super exciting and unprecedented entertainment experience for players.
Properties：
1.Solve the problem of fatigue caused by continuous operation of the crown crane (redevelop and rebuild the coil and the outer protective sleeve of the coil);
2.Solve the same falling object trajectory of previous market procedures, and achieve any falling point within the whole chassis;
3.Create a super exciting and unprecedented entertainment experience for players.
» 
Power：
