I loved the concept for the game! Kinda reminded me of the early Starfox titles, but this time with a f(r)iend!
The colour palette was very cozy, very vaporwavy, but I feel the upgrades could have stood out a bit more as (especially the pink ones) blended a bit with everything else.
I think the controls could be a bit smoother, and add maybe a timer so you don't have to turn around looking for the last hearts, but very impressive work for the time and solo development cycle!