From the start of this short video the boy introduces himself as (from what I am hearing)
Hi, ich bins Michel
Hi, ich bin Zmichel
Neither of which makes sense to me. What is he saying?
The little boy definitely says
Like already said in the comments, "ich bin's" means "ich bin es".
If it helps you to understand the meaning, it is the same as the famous "It's me, Mario" from the character in the Super Mario games.