The art is perfect, I also would like to know how do you make certain parts glowing? (Like the part on the boss)
The control is okay, I don't know if the rapid fire rate of enemy is meant to be designed for stealth.
In normal levels, it's still viable to win, but in boss level, it's just too hard to beat it in final phase.
I ended up spamming attacks to win.
But overall, the concept of the game is good, and it's smooth to play.