This game is a nice take on the theme with a clear and straightforward concept—no overcomplications.
A little tip for platformers: there's a common set of features that players almost always expect (In my humble opinion as an amateur 😊):
- Horizontal air control (well implemented here)
- Vertical control
- Coyote time
- Input buffering
The last two aren't essential for your concept, but I think adding some vertical control based on how long the jump button is held would improve the feel. Right now, the controls felt a bit "heavy" to me.