This is really cool! I love the time mechanic, especially with the slowed down music - it works really well with the vibes you've created with the lore. I appreciate how forgiving the game is: your weapon has a larger hitbox than it appears, which is nice, and the hearts help too (though I think they could have been better placed, I feel like I always got them when I was only missing one heart and couldn't find any when I was at half a heart). The assets look great and it's neat that the bodies of the enemies look just like you. I felt the movement was kind of sluggish sometimes, especially when you're changing directions (the momentum is weird), and I do wish the controls were a bit snappier especially since the spider guys are really fast and can be hard to spot if they're in the other timeline.