Using this product is super easy. First, take the Great Dragon EVOL Bottle that comes with the set and insert it into the Great Cross - Z Dragon. You'll immediately get to hear cool sounds and dialogues from Ryuga. If you want even more fun, find the DX Build Driver (you'll need to buy it separately) and insert the bottle into it. This will let you transform into Kamen Rider Great Cross - Z. When it comes to taking care of your toy, keep it away from sharp objects to avoid scratches. Also, store it in a dry place to prevent any damage. Don't expose it to extreme temperatures as that might affect its performance. Have a blast playing with your new toy!