The premise for this game's story is straight up wild, I really appreciate the scope that you had for this organization's scheme. The mechanics are pretty straightforward and the gameplay is really fun. I will admit I feel like I didn't get very far but I'm enjoying this from a technical perspective. The design of this game has moments that really shine bright. After I read the graphics weren't original I was really impressed with their consistency. The map design is really great and makes good use of open space / linear progression. I was able to mentally map out the structure of the environment as I explored it, everything feels very cohesive and well orientated. The local fauna are super brutal, every single one of them put me on edge. The first time I saw the behemoth lurking beyond the foreground I was genuinely scared.
Honestly, I tried probably a few dozen times, 11 packages is the most I could recover before being mauled by a fish. I think maybe the packages should have small amounts of air. This would be especially helpful for the deeper sections of the recovery. The game-breaking glitches are pretty easy to overlook, if you continue to work on this game (which you really should!!!) I suggest focusing on replayability. This game is really goofy and fun, I like that you can walk on water if you hold the up arrow at the surface. It's probably unintentional but it's a fun way to gather your breath, which I gotta say replenishes Very Slowly. The foreground / background was a little hard to discern which resulted in a lot of frustration trying to find the path back to the surface.
It's really no sweat that you weren't able to make this game the way you wanted to, you should keep working on it!