2.0 failed, but 3.0 has newer features, better armor. It uses the first of it's kind Sentinel Alpha (Successor to the Samurai Series). It features faster speed than the Samurai X (40 mph vs 30 mph) and an energy shield (no samurai armor has that cause all the samurais have LWTA or Light weight titanium alloy compositions). Credit to whoever posted the armor idea called future diamond armor (its anonymous).