Fun little game! I really liked the GLADOS voice and the fact that you managed to get good sound design in there. I definitely had some hectic moments where the lava almost caught up to me ^^
It was a bit unclear that the green goo damages you, so I would maybe make it stand out a bit more. I would also have liked it if the camera angle was adjusted a bit so you could see how far the lava had risen a bit easier.
Overall I think it was a really great submission for your first time ^^
Hi from the OSiRiS course by the way, I was Wyx there ^^