Gameplay is actually very fun, A good take on a VS-like. Actually though, it feels more like an endless wave defense from the flash era. I like the idea that you cant control your character weapons and then you have to adapt your strategy on the fly.
I do think some of the characters have pretty similar attacks. But I was very fond of chaining Aberration guy with other characters.
The spritework itself is quite good, Although the crab is a bit Elmo-ish, but an aberrant Elmo. haha
Congrats on your release!