Hey thanks for playing! We were actually going to add music and sound, and I already had some ready too (all original). But I wanted to use wwise, so ran into a lot of issues with it lol. I was kinda relearning it again for some aspects, and it was first time trying to do music transitions between different states/sections. That will be in the game in the future if you care to check it out again.
On items, we also had plans for an oxygen boost item while swimming, but also ran out of time for that. The art/animation was done by my partner. Thanks for the criticism and all, will be sure to check out yours later!