Great work !!! Unfortunately controls wasn't for me, I usually prefer arrow keys for movement and while I can move with arrow keys, dashing wasn't working for me as it was with left shift and not working with right shift. Ability to attack with control button would also have been nice for me just like it was in Dangerous Dave (if anyone even remembers that :P )
Apart from that the game was really good and I enjoyed it a lot even after that. I think it was like metroidvania where you pick up abilities and unlock new areas.
However there was a bug (two to be precise)
1. When played died via spike it respawned in a place where you can't do anything and it dies instantly again via spike
2. Enemy don't die with spike (I don't know whether that was intentional or you couldn't add that due to time limit)
Great game though especially considering the time limit :)