In what way does your game fit the theme?
You play as a cassette tape man that has to complete puzzles by sometimes (if needed) rewinding himself back to the cassette he comes from. It's also a "rewind" to the times when cassettes were prominent.

Did you write most of the code yourself and made all the assets from scratch?
I worked in a team with another person and we split the work in half. He did most of the coding out of the 2 of us, while I did the art and the rest of the coding. Also, the level design was made by him. Of course, we helped each other out where we needed a helping hand or a opinion from the other.