Thank you, that means a lot to hear!
I greatly appreciate your interest in the art of my game, when it comes to the hit animation, I'm not sure if you're referring to the little explosion particle thing the enemies do upon death, or the sword swipe, so I'll just give a quick answer for both!

When it comes to the explode effect, my favorite explosion effects close in on themselves before expanding outwards, so I made sure to have that effect, gives it a little bit of a pull before it pops out, I also made sure to give the animation enough time to feel like it got to dissipate, hence why the final frame is only 4 pixels, one in each corner.
Here's the sprite sheet for that explosion, feel free to use it/expand upon it if you'd like!:

When it comes to the sword swipe, it was a much trickier thing to pull off, I ended up using Godot's sprite rotation system while making sure to avoid anti-aliasing, this helped sell the effect as it looks much more dynamic than if it were only used in the cardinal directions. I used this animation reference I found on Pinterest as my reference for said animation, I really love the hard-edged look of these swipes because they remind me of Samurai Jack.


And here is the sprite sheet for the sword swipe, once again, feel free to use/expand upon it if you'd like!:

I hope these answers were sufficient for you, and if you'd like to ask for anything more in-detail, feel free to message me on Discord!: ziondhill