This is the just the sort of toy that fathers would have liked when they were their sons' ages! The Draganoid Colossus literally springs into life when the typical round Bakugan sphere is dropped into a recess in the Colossus's back. I remain highly impressed with how these Bakugan figures transform into different shapes just through clever tiny magnets and intricate springs. My son and I still enjoy the challenge of setting up the Colossus into its 'resting' state - although this can be a little frustrating as some bits 'go off' when they are being put in place. We've now worked out an order in which this is less likely to occur. Although the transformation is very impressive, it all happens in a split-second. The 'expanded' Colossus is an imposing sight, but it has limited mobility as a toy despite having legs that can be put in different poses. Overall, I would recommend this product to boys aged 6-8 and their dads!