Hey, really cool game! The art is awesome and it's amazing how complex this is for being made in a week. The ambiance and sound effects are cool, and the voice acting is also a nice touch.
That being said, there are some problems. I did try to beat to the game, but decided to stop after falling into the lava 3-4 times.
There are a number of bugs, but this is fairly understandable given the one week time limit, and nothing game breaking as far as I could tell. The worst bug I got was permanent fog after touching a fog wall. Touching the fog again fixed it.
The camera mechanic isn't very intuitive. It took me a while to realize that I had to pause the falling rocks twice to have enough time to get past them. I'm assuming that was the correct answer, but the "I have to be fast" dialogue line threw me off, as I thought I just had to run by quickly to get past the rocks. In reality, you don't have to be fast at all, if you pause the rocks again, you have as much time as you want.
The tree trunk part is a little weird. I tried and failed to get past it by pausing it the moment it was about to reset, but then realized that the player can float while in the camera view, meaning I could just take my time and rewind the tree trunk to the perfect point each time it's about to fall. I'm not sure if this was cheese or not.
The lava part is way too tedious. The platforming is too unforgiving and the platforms move too fast while rewinding, and some of the smaller platforms are really hard to see with everything being in black and white. On my final attempt, I made it to the second to last platform, lined it up so the platform I had to jump to was right in front of me, and then fell into the lava anyway. I think this part would benefit a lot from easing up on the jump precision.
I found a lot to talk about here because the game is so complex, and that's a good thing! Awesome work, it's hard to believe you made all this in one week. Good luck with your future projects.