Great art style! I love the character designs you came up with. I think my favorite is the player character!
I also really enjoy the little details in the presentation, like the handmade feel of the backdrop, and the lightbulb shorting out with sparks.
A couple issues I noticed:
- I was only able to get to round 2, and like others mentioned, the monsters in that level move too fast to be able to tell whether they're human.
- Sometimes when I try to shoot a human on the bottom row, it doesn't register and instead thinks I shot the monster behind them, which can end the game.
I also noticed there's a lot of waiting around, for multiple reasons:
- Round 1 tends to be slow paced, with sometimes not enough humans to shoot from moment-to-moment, so it seems you actually can't keep your combo bonus up even if you're a good shot
- Sometimes monsters/humans spawn at the very corners of the game, making them very hard to see, although I often was able to tell they were humans. It felt like a bug, though.
- The reload system feels like it punishes you for just playing the game normally, since after every few shots, you have to wait to reload and may lose your combo. I think it would be more fun if ammo slowly recovered itself automatically, but you still need to use bullets sparingly or else miss opportunities for points. That way it only punishes "spamming" and lack of accuracy.
- One time when I played, I spent a really long time in Round 1 and didn't get to Round 2. For whatever reason, the trigger to Round 2 did not fire.
Anyway, I think the use of the theme is fun, and a cool way to showcase lots of lovely character designs. This is a strong contender.
I'd love to see different types of movement and other variations. Maybe some characters flip over, changing from monster to human and back! Maybe some bounce around the screen!
Your concept is solid, so once some of these issues are ironed out, this will be a "scary" good time!