This was a super fun underwater themed bullet hell. I can't resist a game with marine theme lol. I absolutely adored the pixel art style, sprites and animations. Controls felt good, movement was good, and objectives were clear and made for a solid loop. I think my only thing was I did not understand how to get more oxygen apart from the bubbles. Was I supposed to also hit incoming enemies as well? I think just a tad bit of direction, or a tutorial would help aid in that ease of gameplay. The upgrades as tied in with the jam theme was well executed as well. Excited to hear that this is planned for development as a full dungeon crawler. Cheers to the whole team on the submission!