Though an initial boon against Titans mobile suits (as well as even more outdated Earth Federation designs, some of which were One Year War-era Zeon models confiscated after the war), the Mk. II's limited capabilities become quite apparent by the time the plot develops to the Jaburo drop operation (starting in episode 11, "Entering the Atmosphere"), where even the Titans' new mass-produced RMS-108 Marasai mobile suits featured Gundarium alloy armoring. The Mk. II's shortcomings are mitigated, to an extent, by the attachment of the G-Defenser armor booster, constructed by Anaheim Electronics. When combined with the G-Defenser, the Mk. II's mobility is increased via numerous additional thrusters, its vulnerabilities are somewhat reduced with additional armor plating, and its offensive capabilities are boosted significantly – new weapons include a heavy beam rifle and a battery of missile launchers, among others. Additionally, the G-Defenser itself is constructed with Gundarium alloy armor, boosting the protective value of the areas covered on the Mk. II's body. This configuration, known as the "Super Gundam", enables the Mk. II to remain relatively competitive against all but the highest-performing Titans mobile suits, such as the RX-193 Hambrabi.