KRE-O Transformers Micro-Changers Combiners Defensor Construction Set (A4474) 4-in-1 Defensor construction set Build 4 Kreon figures in robot or vehicle mode Build Protectobot Blades, Protectobot First Aid, Protectobot Hot Spot and Protectobot Streetsmart figures as robots or vehicles Build 1 huge Combiner robot Works with major construction brands