Kaiser Sigma hitbox and hurtbox

Earlier today I left this image as a [comment](https://www.reddit.com/r/Megaman/comments/1wjhqvq/comment/pbs9gv7/) in a post, but I think it's worth its own post. I always had the intuition of why the hurtbox *felt* like it was above the head, but only today I had a confirmation of my theory.

Thanks to ConHuevos' [HitBox viewer](https://web.archive.org/web/20120928143132/https://forum.speeddemosarchive.com/post/megaman_x3_hitbox_viewer.html), it's possible to visualise the enemy hitboxes/collision boxes (in the original viewer, all of these were red). I recoloured them just to help you to understand the situation.

The yellow boxes are shields, technically invulnerable bullet sponges. You hit them with anything, your shot disappear (like a Mettaur's helmet). The blue box is Sigma's hurtbox. So yes, the hurtbox is actually bigger than the head, but since most of X charged shots are horizontal (and Sigma can only be hurt with charged shots), most of them get shielded by his arms collision boxes (specially because the charged shot is huge, making it easier that any of its pixels collide with the arms).

That's why the strategy of aiming *above the head* works. The hurtbox is actually huge, but it's so covered by invulnerability boxes that half of the tiny face is covered.