Really like the mechanics on this one! the notepad was a really good touch and the puzzles were quite unique. The artstyle is quite charming and the music and sound fit very well. my only gripe was the lack of a tutorial, introducing the controls and showing the player how to interact with items would help alot.
Regarding the gameplay, there are a few things i would like to see, most importantly the reset button, i get that 60 seconds isnt enough to do the whole game, but why confine to that in the first place? instead what id like to see is a longer timer with checkpoints inbetween puzzles. and you can even imply the cave in with the sound effects and camera shake when the timer is almost up, as oppose to it happening in the last 10 seconds. i also get that the player can get stuck, so maybe the reset button should apply to these checkpoints and not the whole game?
Anyway that was my main point, the notepad eraser should also probably be a bit bigger instead of just being the same size as the pencil, but thats pretty minor.
all in all this is a pretty good entry, and id like to see it evolve into a full game, or even just a slightly bigger version by the end of this jam. 4/5.