Neon Dash Demo Update: New Level Added

Hello everyone, in this update, a new tutorial level has been added to help players master the game controls more easily from the start.

Additionally, we have optimized and fixed several issues reported by players:

- Fixed menu display issues.

- Resolved the problem of incorrect background switching under certain conditions.

- Tuned some overly challenging obstacles in the levels.

Finally, thank you again for playing and providing feedback. We hope you enjoy the game!