I have mixed feelings about my experience with this. I absolutely love the graphical style, it has a strong late 90s pc indie and/or ps1 vibe i enjoy a lot!
The combat does not feel great though. I very much disliked having to collect the double jump again after dieing to the boss so after trying a few times i gave up. It felt very difficult to fight the boss because its choice of attack was random and if it did the grab at the wrong times and place it felt impossible to avoid. If the grab box was more fair I wouldn't have minded as much, but i felt like it would successfully grab me when the actual graphic of it's arm was nowhere near me. By the end I just had to hope that it would do its ground slam attack enough times, but it didn't happen for me.
The graphical vibe of the game alone is enough to have a solid jumping off point, but the gameplay needs work. Great job submitting something though and I had a fun time trying it. I look forward to seeing how this game grows post jam!