The game is fun to play, and really hard!
You may rework the graphic assets, sometimes the tiles of the levels are cut and the pixels are not at the same size as the player's ship.
But I'm still sure lots of people would not care about those details. :)
Viewing post in Submarine Attack jam comments
Originally, I planned to add a shader to the background to create an underwater feel, but I don’t have much experience with shader creation. As for the sprites, I designed all of the visuals myself except for the Tilemap. I didn’t have enough time to design the Tilemap and was worried I wouldn’t make the jam submission deadline. Thank you very much for playing and for taking the time to give feedback — I really appreciate it.