"Punching can literally solve all your problems"
I agree, and it was a very good use of the theme. I too got stuck on that corridor. I appreciated the sprite for the player character. The first two levels, I didn't really notice what it was. When I finally noticed it was a dude working a punching cannon, I giggled a little. That's great.
I'm not sure why I had to press SpaceBar to start the game when SpaceBar does noting in game. Otherwise, a lovely little game.