Nice practice here! Thetra00 pretty much summed up everything, so yeah I think you achieved a good functionnal state of the game and now it would greatly benefit from a little polish and balancing.
I also liked the consistensy of the artstyle and I could almost hear an 8-bit ominous track in the background :)
I'd like to play the game with a controller as a twin stick shooter too, it would work well imo.