This is a nice little game! I like that you made a compact gameplay area and made good use of it, hiding each present in a unique place that was challenging but fun to find. Controls felt pretty good, as long as I jumped first before starting to run. If I started to run even a split second before pressing jump, I found sometimes the jump wouldn't activate fast enough, so I'd just run off a platform.
I also really enjoyed the visuals and sound - both well suited for this cozy platformer. Nice work!