I really enjoyed this one, it felt good to play a game where I wasn't immediately penalised for being hit by the bombs (while of course it would effect my score). The dash and shield were a nice touch, and I'm glad you got to at least have a rudimentary upgrade system (as a more complex RPG based system was correctly identified as being a bit much for the time available). I enjoyed that there were lots of levels (although potentially still too long, and I was never sure if I was going the right way with some of the branching). Great job, I could see this being very popular when we show the games to school kids like we often do :)
I would have liked to have seen the present count while playing.