Nice little underwater game. The hand-drawn sprites look great and fit the theme really well. The atmosphere is nice too, and the music does a good job setting that underwater ambience. The boost feels fast and satisfying to use, and the flashlight lighting looks good.
The level design is also done pretty well; I can tell you put some thought into it. All in all, a simple but fun arcade-style experience where you chase a higher score each run. Good job on this!