As someone who hates tight and enclosed spaces, this one was incredibly unsettling. But, that's what made it work : it's not something that many people would associate fear and horror with beyond the idea of getting stuck.
The PSX graphic style, the sound design, and the progression of the story really worked well here. From start to finish, I was nervous to find out what was at the bottom of the slide after every ride. The tunnel crawls were exceptionally disturbing, as each movement made me afraid to check behind me.
Overall, a game with great horror elements and a unique approach to the horror genre. I look forward to seeing more from you!