It's a really great game! What struck me first was the look of the game; it wasn't overly horror-y, and looked quite clean and loved the way the light from the helmet looked. The way the small backstory was given at the start was really good as well!
The cave itself looked really nice and the way the bat is foreshadowed by making a noise and then going across the screen twice was good and made the ending very relieving as well as funny.
The platforming part was surprising, yet a good addition to the game and made the danger feel ever more real and also made the player feel tense and sold them on the situation. It wasn't too difficult; got it on my first try after I tried to find out what would happen if I got eaten by the 'monster' behind me.
Overall it was a very nice game and a really fun play! Congrats on it and good luck on future projects!