The ornamental design for an amusement apparatus, as shown and described.
FIG. 1 is a top, left side isometric view of our new design for an amusement apparatus.
FIG. 2 is a top right isometric view of FIG. 1.
FIG. 3 is a left side elevation view of FIG. 1.
FIG. 4 is a back side elevation view of FIG. 1.
FIG. 5 is a right side elevation view of FIG. 1.
FIG. 6 is a front side elevation view of FIG. 1; and,
FIG. 7 is a top plan view of FIG. 1.
Contour is shown with line shading; no difference in color, texture or material is claimed unless expressly noted. The line shading represents contour, not surface decoration. The features shown in broken lines in the drawing depict environmental subject matter only, and form no part of the claimed design.