Yes - in Barbie Merge Mystery, all orders and progress can be completed without spending any money. 

The key is finding the right strategy and planning your moves:

•  Carefully observe the items on the board and how they evolve 🔍
• Instead of rushing, take time to plan the best merge chains
• Focus on which order is more important and try to complete that one first. This will help you progress more effectively.
• Purchases are simply there to speed up progress 🚀, but with patience and the right approach, you can absolutely enjoy the full game for free.