User blog comment:The guy who got his name/7* Rowgen Idea/@comment-66.250.190.28-20160205155834

 If it would be like that it should be called Rapid Fire instead of Bullet Hell.

 Also if you could change his UBB something like this

 5 Hit Massive Combo on all enemy, 300% boost to Crit ,500% boost to all BB Damage for 3 turns, (damage relative to remaining HP),(uses all allies' BB gauge) and Fill to Max.

 Reason why I named it Rapid Fire because he uses all his ammo at once causing consecutive shots at the enemy, Also I picked 5 hit combo because of having a team of 5 in your team not including friend.

 This might be too strong but its my opinion.