Cool vibe overall and interesting concept. I liked the mechanic of patching up the holes, but I felt like it I would consistently run out of ammo long before the submarine had time to lose enough health. So maybe if the sub's lost health faster, and there was more ammo, that mechanic could have been more useful and added some tension to that part of the experience ( unless i am missing something, which i might be). Overall really cool project, love the retro, low poly aesthetic.