I like the atmosphere, It had a cool vibe to it. Though, I do think checkpoints would have helped a lot, the slow walk on the vent at the start every time was a little tough, lol.
Ye that could help a lot with some checkpoints , even me i had troubles for the vent xd.
i know its not really good but for my first jam im pretty happy of what i did.
You should be happy with the game! I never would've thought this was your first jam. Good job!