It was surprisingly fun to dodge the sharks with their fast speeds and chaotic -- but predictable -- trajectories. Unfortunately I really didn't get much of a sense of "Loop" from this game -- the only distinguishing gameplay mechanic (screen warp) can basically be completely ignored for the most part.
The sound effects were nice, but the repetitive music loop dragged down the audio experience. (So one of the most prominent instances of something fitting the theme in this game was in a way that made the experience worse :( )
Cute touches with the fish's animation whenever you press a direction on the keyboard!
Speaking of keyboard, it took a bit to figure out how to get past the title screen. Something like "WASD/arrow keys to move, space/enter to select/pause" on the game page could be helpful.