Its actually really fun and well done. Basically one of those flappy bird game type games but the best implementation I have seen and quite unique. Also slightly addictive. I am only on map 2 but I have died about 20 times so far. A few points though. I having the guy speaking every time and giving instructions after you die is a bit redundant. You should have the voice and text off on a per map basis if someone skips it a couple of times. On map 1 with regard the stalactites and stalagmites , its hard to tell which ones are in the foreground or the background. I do like the parallax background though, very well done. Also I have noticed a couple of times that the controls did not respond as I wanted, but this was literally 2 times out of about 20 plays. Also the frames per second displayed on the top right is not really needed, I was wondering what it was for until I saw it flicker from 60 to 59 for a split second.
If you want to take a look at my game and give me some feedback I actually would not mind playing yours a bit more.