It's really hard to play your game with a mouse because everything time I middle-click, the entire web page moves. itch.io has a function to enable full-screen, you can even set it so it opens in full-screen immediately after you open the game, that would fix the middle click issue. You can let me know when you fix the issues, I'd be happy to test the game again.

I should be able to use the arrow keys to move. Also, I touched a key and nothing happened. If this is intentional, it should say something to the user. 

Nice game. The music is good. The click to move works sometimes but not always. Also when I press the middle button it shoots, but also tries to lock into a scroll mode. I cleared the first level, but somehow I wasn't able to pick up the key, even after going into the cell with the key. The "shoot in the last moved direction" is interesting. With the controls sorted out this would be more fun. All the best!

the visuals are kinda cute, makes me remember of dos games I played in the 90.

the music sets a nice tone .... but man I am not enjoying the controls too much I have to say, maybe its me but I dont like to have to use mouse for keys