70421 LEGO® El Fuego's Stunt Truck Super Mario while the Owl Post features

while the Owl Post features a mail-drop function

backpack (cheek lines)

All 3 animal figures in this transforming toy set make creative and fun gifts for kids

power and excitement

70421 LEGO® El Fuego's Stunt Truck Super Mario while the Owl Post featuresKids can experience an exciting way to play with the LEGO Hidden Side 70421 El Fuegos Stunt Truck playset that combines a unique augmented reality play experience. Download the Hidden Side app and scan the model with a phone to make the awesome LEGO model come alive in the app. Interacting with the model in the real world makes things happen in the app. With continuous updates, a unique boss ghost to battle in each set, new mysteries to solve, cool