The alternate interpretation of the Nu Gundam featured in Mobile Suit Gundam: Char's Counterattack - Beltorchika's Children.
In addition to a more bulky design, the RX-93-ν2 Hi-Nu Gundam sports an exclusively white and purple (or blue) color scheme to distinguish it from the white and black (or midnight blue) paint job on the RX-93 Nu Gundam. Like the Nu Gundam, the Hi-Nu Gundam also has a mouthpiece with three vents.
The most prolific difference, however, is its distinct back boosters and revised fin funnel system. The fairly standard backpack design of the Nu Gundam is replaced with a much more unique dual "long booster" system, with another long booster situated between them and two propellant tanks angled below the dual long boosters. These boosters were capable of great accelerations, and the propellant tanks extended the duration of time the boosters could remain active. The long boosters also served as the storage area for the unit's fin funnels. Also, unlike the Nu Gundam, the Hi-Nu Gundam could recharge the fin funnel's power supply, extending their performance time.
Apart from the obvious visual differences, the Hi-Nu Gundam also expands on the Nu Gundam's armaments, with the addition of a powerful machine gun in its right forearm as well as the inclusion of an extra beam saber, bringing the number of beam sabers up to three. The suit can also use a Hyper Mega Bazooka Launcher, an improved model of the weapon used by the Hyaku Shiki during the Gryps Conflict, when heavier firepower is required.
Thanks to its Psycho Frame, a vast improvement over the psycommu system prevalent among mobile suits designed to be used by Newtype pilots, the Hi-Nu Gundam's pilot had much greater control over the mobile suit, piloting it almost as if it were an extension of his own body and bringing out the suit's fullest performance.