Holy crap, how did you manage to make this in a single week?!
There is so much I love about this game I don't know where to start.
The level design is great and controlling the character feels smooth and satisfying. Slopes never caused me weird issues like slipping off, and there was a lot of variation in each part of the levels. Controls were easy to understand and to get used to (usually I have inverted camera controls so that took me a bit to adjust hehe).
The level of difficulty was comfortable and never really frustrating, without it being boring. Originally I collected 3 pizza slices and didn't know where the 4th one would be (I thought each area would have one) but after some searching I did find it (but nothing happened afterward?). I didn't collect all the candy but stopped around 304-ish, which is still way more than I usually go for in games (I'm not much of a completionist).
The art has a special kind of charm that fits the classic 3D platformer type of game that you don't see as much nowadays (except games like A Hat in Time), and the music was fun and fitting.
I'm not sure how the penalized theme works into this, but maybe I missed something obvious. Aside from that, really fun game, nice job!