With its reduced size and the increase in output, the Gundam F91 has a drastically improved power-to-weight ratio, allowing it to attain higher mobility than MS of earlier eras. Its mobility is on par with the miniaturized MS deployed later by the Crossbone Vanguard. It also has special features such as the Bio-Computer, MCA (Multiple Construction Armor) structure, and the MEPE (Metal Peel-off Effect) phenomenon. The Bio-Computer is installed in the suit’s head and feeds battle data directly to the pilot, but only a Newtype pilot can draw out its full potential. Accompanying the installment of the Bio-Computer, a head-mounted coolant and heat discharging system were also implemented, with the face guard opening to discharge heat under certain circumstance. The MCA structure incorporates electrical functions into the suit’s armor, allowing for more efficient use of the F91's limited internal space. The MEPE is a byproduct of the MCA structure. It helps the suit to dissipate excess heat by shedding the outer layers of its armor, and in the process, creates afterimages with mass to confuse enemy pilots, as well as the sensors of enemy machines. However, the MEPE is only activated under specific conditions.