Hey, it's cool that you made your first game!
Here's some feedback if you wanna improve the game.
- At the moment, it doesn't really fit the "Power" theme. I think you could do this by having coins that you collect to charge up a double jump! That or add the ability to double jump and collecting coins let's you do a super jump.
- Add some more space between the platforms and make them slower, it's too difficult at the moment.
- Random platforms and things like springs.
Just some ideas! Good job!