This game offers an interesting concept of using your deaths to progress, the puzzles of how to die each time keeps the gameplay unique. However there were a few times where the puzzles became obvious and became a cakewalk.
The sounds are nicely done for the feel of the game however the sound levels sometimes went up and down for no discernible reason. The option to mute or adjust volume sounds would have been a nice addition.
The art style is not particularly unique, but it works for the game, not needing to be very distinct for a cave feel. However differing backgrounds and occasional differences would have been something to look forward to. In addition a larger size for the game is a needed change, currently the small window size hampers the ability to enjoy the game to it's fullest.
Rock Bottom is a nice place to sink some time and kept me entertained for about an hour, and overall I would give it a 4/5.