An interesting concept and it seems like the game is sort of setup like a mini metroidvania which is cool. Though I will say some of the parts are somewhat unclear that you actually NEED an ability. Moreso it seems like you're just barely not managing the jump or something. Though the acutal abilities are definitely helpful throughout.
The other thing I'd say is that the "soft reset" system where if you hit spikes off a platform it warps you back, actually led to a lot amore deaths than if it wasn't there for me. Specifically it lead to me accidentally falling back in repeatedly while moving because I was trying to move out of the spikes. I feel like a better way to handle it would've been to have the player have invincibility frames and not remove a bit of control.
That's more of an opinion thing based off an accident though so take that with a grain of salt, I just generally feel lie control with the player can lead to some interesting results.
Otherwise though the only real thing I'd say was a bit annoying is the boss. It's not really telegraphed what it's going to do most of the time, it tends to just jump between attacks pretty rapidly, and it also modifies it's attacks without much warning. Switching direction on the ground pound, or deciding to dash twice instead of once (though that second one fits more of a second stage boss).
Overall though an interesting concept, I felt a little let down that the AI doesn't send the game off with some sort of thank you about the virus, but it does end with a decent boss fight and with some pretty cool ability setups.