Really loved this game. The controls are had to master but every time I would make a mistake I felt like it was my own fault and it just made me want to get better at it. Others have mentioned the control difficulty and while maybe there could be some tweaking I felt it really fit, makes it feel like a classic arcade game. Defenders initial reception was that it was difficult to control but fun to master. Really the whole identity of the game.
I can easily see this game being a big thing it was really loads of fun to play. The music and sound effects are all solid and really improve the experience. I really really hope you continue working on this there's a ton of potential.
(Oh and windows defender thinks this is a virus for some reason)