1. Prepare Ultraman materials: Prepare Ultraman-related picture materials, including Ultraman’s image and actions.

2. Create a WeChat mini program project: Open the WeChat developer tools and create a new mini program project.

3. Design the interface and functions: Use the visual editor or code editor in the mini program development tool to design the interface and functions of the Ultraman mini program.

4. Add photo processing function: Add image processing function to the code of the mini program to synthesize the photos uploaded by users with Ultraman materials.

5. Testing and publishing: Test the mini program in the development tool to ensure that the photo synthesis and functions are normal. After passing the review of the WeChat open platform, the mini program can be published to the WeChat platform for users to use.