The present invention is directed to a controller having a gel-gripping surface for engagement with a user's hand. The controller includes a housing having a plurality of operation members logistically positioned for manipulation by a user's hand. A handle portion adapted to be grasped by the hand of a user includes a deformable gel-grip extending over a substantial portion of the handle. The gel grip includes a flexible external exposed surface containing a semi-liquid flowable material within a cavity portion of the gel-grip. Such an arrangement provides a multi-directional deforming gripping surface with a comfortable feel.