KRE-O Transformers Micro-Changers Combiners Abominus Construction Set (A4473) 4-in-1 Abominus construction set Build 4 Kreon figures in robot or beast mode Build Hun-Gurrr, Predacon Rippersnapper, Sinnertwin and Windrazor figures as robots or vehicles Build 1 huge Combiner robot Works with major construction brands