Cool game! Your disclaimer that you added definitely helped me. I was able to get to about 250m. The art style you chose is really interesting as well! Kind of like a PS1 vibe to it.  The thud's when my rat got hit were positively soul crushing. I felt like I was taking real life psychic damage every time I heard it! 

We also made our game about scaling a tower, would love it if you checked it out! 

Big Rat - Dodge Poop rocks!

Giant af rat. 5/5

The falling rocks are extremely punishing to be hit by, and its incredibly hard to dodge them when you can barely see them coming. Maybe some sort of way to angle the camera up (or just have a wider FOV) would help make it a little less frustrating?

RATS. THE RATS. WE'RE THE RATS.

We are the rats! Che che che cheee

Oh that's a really fun take on the theme! I like what you got going there, a few notes though:
- I think it'd add to the challenge and the comedy of the game if the rat was able to get bigger than 100%, making it harder to dodge obstacles and forcing you to take breaks from climbing
- Having other types of obstacles to force you to jump off would be a great way to tutorialize the scale down mechanics! I really like them, but if I haven't looked at the description, it'd never come across my mind!
- I feel like the game drags on a bit, I was expecting to be done with it around 200-300m mark, but it just kept going - this would be fine to me with additional gameplay diversifiers, but it's kind of monotonous after a while :p

That being said, I really loved the whole Silent Hill-esque presentation, the PSX graphics, sound effects - I'm especially happy to see you've got ingame instructions on how to play and audio feedback for hovering over menu buttons! Great job, overall :D