After getting to the end of the level, it was fun seeing how the character escapes from the puppeteer! And here are some of the things I noticed when playing:

• The resolution of the game is big, which isn't a bad thing, but it wasn't scaling that well even in fullscreen mode, I ended up playing the game with 60% zoom on my browser just to see everything.
• The level throws a lot of things at the player at once. 
• When jumping at the top of the screen, the player can still get hit from objects off screen.
• The revive mechanic was cool and I noticed it gets faster the more often it's triggered, but I think it should have sped up more frequently as for most of the level it felt like it barely changed. Which meant that I could just hold down Shift and run to the right and just avoid all damage if I timed the hearts correctly, with very little consecquences. If the revive was faster overall, I think the player would play more cautiously.
• The visuals are very well done! Very smooth animations as well!

Overall it's an entertaining game! With a charming visual style on top of that.