Solid and fun one-button game! Even though it was short, I felt like this was a fun little adventure with some really challenge to it despite the simple controls: the level design really went all-out in creating a crazy obstacle course to run and jump through, and actions like wall-jumping felt very smooth. I felt like the art and animations were rather charming as well, especially the death/respawn animations. I initially thought holding down jump was to charge up a bigger jump, but the strategic purpose was instead to wait so you could dodge turret fire, which added some interesting depth.
It definitely could use a bit more polish: felt like the hitboxes for bullets and spikes were a bit wonky and unforgiving at some times (when a spike and a box are side-by-side and I'm on the box, I don't think I should be hurt by the spike until I've fully stepped off the box completely), my character would float around sometimes instead of using their run cycle animation, the camera would spaz out occasionally when respawning, and I felt like the game went from very easy and forgiving with tons of checkpoints to suddenly way too hard (most likely the product of building such a short game and wanting to stretch it out). Also, and this is just a personal thing: even though I agree with the strategic element of holding jump to wait, I hated doing it because it made me commit to doing a jump after I was done waiting and that made frustrating to contend with.
Overall, I felt like this had a lot of promise and if possible, I'd love to see more of this game expanded upon with even more content to go through!