Interesting game, I enjoyed the gameplay. It reminded me a lot of the scroll levels in Mario but felt like it had more of a purpose with the other character moving and trying to keep up with them.
If you wanted to improve, checkpoints would be nice as well as some additional sound effects. I also think a health bar would be nice instead of the instant death state that currently exists.
Overall really cool game, I hope you keep working on it. If you do, feel free to ping me after the jam and I'll play it again!