i like the lighting and the pixel art! the gameplay is really simple and easy to get a grasp on too :). but it kinda seems like you die for no reason at times. The game said I died of overpressure, but there was nothing to indicate that the water pressure was too high. maybe a meter showing that or something could give the player more notice before they die. But i do like the upgrade system being in the game, it adds a lot to the gameplay loop!