Nice work! It's cute! The art is nice and finishing a level can be very satisfying. I felt it was a little too easy, maybe 3 lives is too much when you can run down the enemies? 

Anyway cute!

You choose the same "character" of my game! :-) Simple but relaxing game! I like it!

Very cute graphics! I also wonder how you did the enemy pathing - where they kind of wobble around while moving in the players' general direction.

One small thing: The transition screen is in a different color from the two blue hues you picked for the color pallette - which is technically not 1-bit. But hey, the rest of the game is tho!