Hi!
It was really hard to understand what I can do with the click, I thought I have a melee weapon but after the first parry everything was clear. It was a super interesting game. My general strategy was to go horizontal and just parry back the horizontally sent bullets so every one will hit the enemies.
One last suggestion: if the player beats the enemies you could show some "you won" view because I was looking for a bit for additional enemies :)
All in all a super fun game thanks!