how do I create an infinity runner movement for a ball player?
Unity Answers is for specific technical questions. When asking a question please provide as much information as possible: What you want, what you have tried, what you expected to happen and what actually happens. Also provide any applicable scripts.
Your question is a very “How do I make a Game” type question which we do not provide answers to. You should start with reading tutorials and learning to use unity. Then when you have a specific question we would be happy to help you.
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