Everyone else already said what I wish to said.

Consider removing spikes near the respawn points as it easily creates a death loop.

I also appreciate the shortcuts.

Very fun! I died 31 times lol. Very nice platforming feel and I really enjoy the minimalist visual style. As far as feedback goes, my only suggestion is to make the player's hitbox slightly smaller than his sprite. There was a couple of times that I collided with a spike unknowingly, so to avoid players getting angry at this I would make the hitbox a bit smaller. Overall, really great job!

The music gives a really good vibe to the game, keep working on this project!

Nice and simple platformer!

• Innovation – Basic gameplay, but still fun
• Fun – I wish the jump was smarter, like if you tap the jump button it is a small jump and if you hold it you jump higher~ also you should stop movement for a second after dying~ I ran into a spike like 3 times in a row hehe
• Graphics – Very nice and clear black and white art! I thought it was odd the main menu and thumbnail have color hehe, you should make those black and white too.  The star background looked and moved great!
• Audio – Simple and cool.  Ambient sounds would help it feel alive, make some wind sounds. Also foot step and landing sounds are always nice in a platformer
• Polish – Some particles could help it feel more alive~

Great job on the game!  Please check out my game if you like Metroidvanias or platformers :D