It's a bit hard. I would add HP to the submarine. I didn't manage to get to Kraken. :(

Interesting idea and cool game! It is indeed very difficult, but that's not necessarily a bad thing!
I would say the controls were a bit wonky for me though. Moving with WASD and having to shoot with left control put my pinky in an awkward position. Also, surfacing by moving up, but then diving by pressing space bar confused me a little bit!
I really like the idea of kind of game (Shoot 'em up? Bullet hell?) with two separate screens. And the oxygen tank is a cool way to force you to move up into the surface, though I didn't see any motivators for moving back down into the water. Definitely cool though :D

It's pretty hard, sometimes I find myself in an impossible situation between bullets. Health would definitely help

Cool shoot them up, maybe having a greater resolution will be better for the difficulty of the game which is really hard a this point. Sad, there was no music.

Nice idea to change perspective being both under water and above water. It was a bit difficult though, and I never got to the bossfight either :/

Nice graphics but a bit hard to control (it's difficult to attack and move with the shoot key in Left Control). The movement of the enemies are not natural too. With more time I'm sure that you would have made a more polished game, but good try!

Cool idea with different layers :)
But it is extremely hard, I'm getting killed right after 10 seconds...

I loved how the theme was integrated in the gameplay. That was brilliant. But as others have said, collisions are rather unforgiving. Maybe with a little bit more polish...

Very good looking entry. Nice game, a bit hard for me thou...

Dying in one hit was really annoying, and the collision boxes are too big! I also would remove the voice every time you start over.

Anyway, the game has a good graphical theme, with cool enemies. Good job.

I liked it, particularly the graphics and mode switch, but felt it was a bit overly unfair/hard.

It's really hard. I like the graphics though!

Innovation points for multiple perspectives! Bonus points for having voice work. This was really tough, but fun, and good looking.

I would decrease shot speed to lower difficulty. I sometime spawn on rocks and instantly die. The little intro seentence was good but a bit repetitive. Maybe unactive it after the 3rd try ? Appart of that I was really interested in that O2->go back to surface mechanic. Maybe it would have been better for a Above the surface theme :D The steam-punk fish design is great.

Awful controls render this almost unplayable! are we supposed to play this entirely left handed? Its a shame cos this looks awesome!

THE KRAKEN'S FISH WANT TO KILL US. FEED THE KRAKEN TO END THIS FIGHT.

nice graphics

I like the graphics(!), the assignments with sound and the idea of switching between above and below the sea-level.
Unfortunately its a bit hard to play with just one life and the key for shooting is not well placed. I am familiar with playing WASD with the left hand, but pressing CRTL in higher frequence was bit more difficult then. Furthermore when I hit it more often, it does not shoot every time. I think a little bit of cooldown is okay, but I did not understand the underlying period of time.

I like the idea very much, but it was very difficult to play, when I take into account how fast the enemies move and in how many directions they can shoot.

Nice visuals, but for some reason I couldn't fire my weapon all the time. This ended up being very frustrating.

Cool idea with the two levels. The game is a bit hard though. It felt like pure luck to dodge the enemy bullets. I wasn't able to get very far. Oh, and nice graphics!