Thanks for your comment! Making the cursor customizable was definitely something I thought of but ended putting it as a "nice to have" before all the other things in the game. The hitboxes aren't intentionally smaller, but it was a lack of polishing towards the end of the jam. I believe the hitboxes are based on their original prototype models of Unity's 3D spheres/cylinders but I didn't take the time to manually edit the colliders.