"Statement: You can't defeat both of us."
HK would've smiled if he could. Mako's Force Crush damaged his left arm and leg but he didn't have time to worry about that. While Mako was using Force Lightning on Lucas, HK aimed with his sniper rifle(he was close but he used the sniper rifle because it causes more damage) and shot through Mako's cybernatic hand. As soon as he pulled the trigger he felt the damage in his arm.
"Analysis: My left arm and leg has taken serious damage. I cannot use them."
"I've barely eaten anything for many decades now. It feels like my stomach shriveled into my back........though i don't have a stomach or back because i'm a skeleton! Yohohohoho! SKULL JOKE!"
"My eyes have never seen such a pretty woman! But i'm a skeleton so my eyes don't see much."