Oh god seeing that crystal with a john wick face is actually hilarious hahahahah
This is an interesting game design-wise because the control scheme is so uncommon. It's quite original, and because you don't have WASD to move around you really do need to learn a new skill basically, kill something as fast as possible, use the slowmo to calculate the roll and try to gain some space so you can aim with focus. It's really interesting!
The game really comes together when you get a combo with a gun, specially the SMG. The slowmo helps you shoot accurately and you get to feel like a super efficient killing machine, just like the dude himself, hahahah. I really think the game would benefit awesomely from more of this slowmo-combos like this.
I would add a different/alternate key for the roll, however. It's just way too uncomfortable to press the middle mouse button for something so important!
Also, i don't know if it was intended, but you can leave it pressed down and john wick will fling himself full speed across the stage like an invulnerable ball of death.
One thing: Enemies with katanas have a really weird attack hitbox. Sometimes i'd swear they killed me before the animation played, or that i was far away enough. It's kinda weird. Probably would need an animation before attacking to communicate the player they will slash!
Overall, this was quite interesting! An arena-shootemup game controlled with only the mouse. Huh!