Abstract: A trampoline and cage ball game device includes a trampoline frame structure with a spring supported flexible trampoline bed attached thereto and a plurality of support legs for supporting the trampoline frame and flexible bed. A single continuous open ended sheet of flexible material that is folded into four reinforced corners defining a pair of end wall panel sections and a pair of side wall end sections forming an enclosed cage structure. A plurality of elongated corner pipes are attached to inner corners of the trampoline extending beyond the top of the enclosed cage structure, the corner pipes having spring attachments secured to the four corner folds to stretch enclosed cage structure at the end wall sections.