Really liked this episode. Stark is just plain cool. I hope he's not really dead since they didn't show him dissolving like they have with all the other Arrancar.
Was the children's games thing his Bankai? I didn't actually hear him say it, so maybe it isn't?Not sure what you're talking about. He took on two Captains and two Vizards and beat 3 of them. Barrigan took on one Captain and one Vizard and didn't defeat either of them.
Because his mask is just a jawbone around his neck. Which is hidden under his Hollow cloak in that scene. Although it technically shouldn't be, since their pre-Arrancar form should look like their released form.
I'd say being so strong that just your power aura kills everyone you try and get close to is a pretty big fucking hindrance.