How do I combine Planet and Fire in Doodle God?

To combine Planet and Fire in Doodle God, you need to follow a specific sequence of steps to create the desired element. First, ensure you have both the Planet and Fire elements unlocked. If you don't have them yet, you can create Fire by combining Air and Energy, and Planet by combining Life and Stone. Once you have both elements, simply drag the Planet element onto the Fire element or vice versa. This combination will create the Sun element. The Sun is a key element in the game and can be used in further combinations to unlock new items and progress through the game. Remember to experiment with other elements as well, as combining the Sun with other elements can lead to even more discoveries. This process is part of the core game mechanics, where logical or thematic connections between elements often result in new creations. Keep exploring and combining elements to unlock all available items and complete the game.