To start a coloring activity, select the 'New Activity' option from the main menu. Choose a character or scene that you want to color, then tap on it to open the coloring interface where you can select colors and tools.

Yes, after completing your coloring, tap the 'Save' button located on the coloring interface. You can then choose to save your masterpiece in the gallery for future viewing or sharing.

To unlock new characters and scenes, you can complete various coloring activities and challenges. Earning stars and achievements will help you gain access to exclusive content as you progress in the game.

In Disney Coloring World, you have access to various coloring tools, including paint brushes, buckets for filling colors, and erasers. You can also find glitter and pattern tools to enhance your artwork.

To access advanced features, follow these steps: 1. Complete introductory coloring activities to understand the basics. 2. Reach specific achievement milestones that unlock bonus tools. 3. Explore the settings menu to customize features such as brush sizes and special effects.