Later on when Mike is watching over a number of Scouting Legion members who are under suspicion of being an accomplice to Annie Leonhardt when Titans unexpectedly appear within Wall Rose. After ordering the others to escape and warn the surrounding towns, Mike takes on nine Titans by himself in order to buy them time to get away. He manages to kill five of them before being defeated by the Ape Titan, which steals his Vertical maneuvering equipment for inspection before instructing the remaining Titans to eat him.
His power is considered to be only second to Corporal Levi and the fact that he easily disposed of 5 Titans emphasizes that statement.
He apparently has a very sensitive nose that can track titans further than the human sight.