This is a a really fun game and a good use of the theme. I like how fast it is and the camera movements feel nice as you move around. One issue I had was I couldn't get very far because the spiders are able to remove the orbs they drop when they run into them. This made it really hard to evade spiders while also picking up orbs. It would also be helpful if Spiders always gave the red glow. Sometimes the glow disappears and makes the spiders harder to see.
Otherwise really great game!