User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-6050823-20140724225513

Minor Notes On MH4G
 * The Heavy Bowgun can now hold to a Wyvernfire shot, which you can use at anytime, while also using other ammo/shots.
 * Dual Blades now a spin attack while in Demon Mode, which does more damage than that two hit combo.
 * Some monsters in the Old Desert only appear at night and some of the areas in the Old Desert change in someway at night. Also, at night Hot Drinks are needed.
 * Charge Blade receives some changes though was already explained by Kogath but here it is again from his previous post
 * In Blade mode you can now do a shield bash (does cut damage due to the shields being bladed), which can also combo into the big Elemental Burst attack. This change makes it so now the Elemental Burst can be used in both Blade and Axe modes.

The Elemental Burst can also now be canceled out of, which will put you back in Blade mode. Doing so will transfer the energy to your shield and a red shield icon will appear next to your Sharpness bar.

This new state is called Elemental Power Up (属性強化状態). Certain moves will be powered up in this state, and the Elemental Burst will use all your phials as well as the charge in your shield to unleash a devastating attack.


 * Diablos is a lot more destructive and willing to break through all sorts of obstacles to get to hunters, same goes for Black Diablos.
 * From the look of one scan, it seems Black Diablos now roars when it spots a hunter.