The ornamental design for a handcontroller, as shown and described.
FIG. 1 is a front perspective view the hand controller showing our new design;
FIG. 2 is a rear view of the hand controller of FIG. 1 illustrating left and right index finger recesses;
FIG. 3 is a rear perspective view of the hand controller of FIG. 1;
FIG. 4 is a top view of the hand controller of FIG. 1;
FIG. 5 is a bottom view of the hand controller of FIG. 1;
FIG. 6 is a left side view of the hand controller of FIG. 1;
FIG. 7 is a right side view of the hand controller of FIG. 1; and,
FIG. 8 is a side perspective view of the hand controller of FIG. 1 at a viewing angle best illustrating the contour of finger notches extending between sides and the rear of a hand controller.