Very nice game made me feel "vampire survivor" style game vibes. I really liked that the weapons have upgrades and that the hitbox is just the helmet. One thing that according to me would make more sense is that you can grab the powerups with the whole body, although that would perhaps make it easier.
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I tried adding a secondary collider to pick up stuff. It felt great to be able to pick up the boxes with the body. But that also meant that stars would need to react to it for consistency. It made collecting stars too easy, I could sweep up and down and rack up the multiplier effortlessly. I might make the boxes slowly gravitate towards the player after some time, in a future update.
Thanks for playing!