Stronger's Great Remodeling!! (ストロンガー大改造！！ Sutorongā Dai Kaizō!!) is the thirty-first episode of Kamen Rider Stronger. Following the death of Tackle, it featured the debut appearance of Stronger's Charge Up form. While previous Riders had been upgraded and received modifications to their costumes, Charge Up marks the first true , as well as a prototype for the Final Form which would become commonplace in the Heisei era. It also featured the end of Delza Army majin, Major Skull.