A clever game design coupled with charming retro pixel art - what is there not to love about it? <3 The mechanics led me to be more careful with my shots, so I would not accidentally block the way to the exit - at the same time I had to keep moving, so that the enemies would not have me in constant fire and so drive the walls forward. That was a great balancing act that you have accomplished there! That's why I recommended your game with an article on our blog and uploaded a playthrough video. <3 The only thing I would want more from the game would be a more fierce boss fight, but that's a tiny minor detail. :D Excellent work, I wish you a high ranking at the Ludum Dare 42 with it!
Best wishes,
Sebastian