Metroidvania! Haha! Awesome!

Would be nice if the jump height depended on how long you press space. Unless it's intended this way, because it's quite easy to die just because jumping automatically kills you when there are a few enemies at the top. You know, where you can't even shoot them. Also, sound would be nice! :D

Got to 40,000ish and died. Fun, but when a player dies you should show the score.

Got to 40,000ish and died. Fun, but when a player dies you should show the score. Pixel art was cool too.

I couldn't see a connection with the theme

Your game is really fun - especially, if you fire faster than the enemies are coming. The fixed jumping height is a bit of a challenge, but it would be too easy otherwise.
Also, congrats on your physics engine, the way the enemies react to your shots makes you almost feel the impact of the bullets :)

I'm not sure if this was intentional or not, but I was able to score additional points for shooting enemies that I had already shot.

Quite fun but would be nice if their was a main menu and death screen so you can see your score

it's okay I guess. pretty generic tho.

Nice animation and graphics :) - Not sure about the mix of mouse and key control's for a side scroller

pretty weird hahaha but good effort

Nice pixel art.

Would have been great to see any effort to connect with the theme - to be honest it feels like this could just be some work in progress that was posted here as a competition entry.

Hi there. nice setting and shoot graphics. Like the physics collision on hit. Shame no sounds or music. Good job!

Nice pixel art here! I like also the gameplay!

Like the idea of skeleton VS jelly fish :) But sad there is no sound and no exploration. (Also sad we cannot explode jelly fish :D)

Gold Medal for the most WTF main character of this Ludum Dare 30 :D Gameplay is a good start, it's clean and kind of fresh, even if action is a bit slack for now. Hope you'll push this further and bring it on web distribution.

Please do provide a "Spooky" warning on this game. It nearly spooked my guts off. Good use of physics. Interesting connection to the theme, but now I get it.