Okay kiddo, have you ever seen a movie or a TV show where the characters are drawn in 2D or two dimensions? It means they look flat and don't have any depth or thickness. Now imagine if you added a little bit of thickness to those characters, so they looked more like 3D or three dimensional characters. But they still move and act like they're in a 2D world. That's kind of what a 2.5D musical is like.
But instead of characters, it's music and visuals that are given the 2.5D treatment. The music and lyrics are often based on a popular story or franchise, like a movie or video game. The visuals that go along with the music are usually animations or projections that look like they're popping out of the stage. Kind of like a cool picture book come to life!
So imagine going to see a musical about your favorite video game. You would hear all the music from the game, but it would be performed live on stage by actors and musicians. Meanwhile, there would be animations or projections on the stage that make it look like you're inside the video game world. It would be like you're watching a 3D movie, but you're actually there in person!
Overall, a 2.5D musical is a really cool way to bring stories and music to life in a new and exciting way. It's like a mix of traditional stage productions and modern technology, making for a fun and memorable experience.