This was great! You nailed the difficulty level for a 5-10 minute game! It was challenging without being frustrating. The checkpoints were generous, but I never felt like my hand was being held at any point. And the "fake" blocks added some nice variety - it was almost always funny when I forgot about them and fell to my death. Great pacing overall.
The respawn animation was very cool! It was one of the most professional-feeling effects in the whole game. And I loved the over-the-top giant fireball attack in the third stage. It was super satisfying - a nice reward for clearing the first two stages.
The music was a little grating , and clashed a little bit with some of the sfx. And the jump felt a little bit stiff at first - but it was perfect once I got used to it, so that is barely a complaint!
Great entry! Cool implementation of the theme, and a fun, complete experience! Of the games I have played so far, this one feels the most like a finished product. I look forward to seeing your team's future projects