Prize acquisition game device

a To perform angle adjustment of a claw member in an end portion of a gripping arm assuredly in a simple manner. A claw member is disposed to be able to turn relative to an arm in the direction for opening or closing the arm , and a claw angle adjusting means that can be switched between a restricted state in which a relative angle of the claw member with respect to the arm is fixed by restricting a turning operation of the claw member relative to the arm and a non-restricted state in which the relative angle of the claw member can be changed by allowing the turning operation of the claw member by a user's manual operation is included. The claw angle adjusting means has a slider that can be moved between a restricted position and a non-restricted position. In addition, a stair part that has multiple steps and forms the restricted state of the claw angle adjusting means by engaging an engagement part that is a part of the slider is disposed.