In November 192, Commodus held Plebeian Games, in which he shot hundreds of animals with arrows and javelins every morning, and fought as a gladiator every afternoon, winning all the fights. ... Commodus' death marked the end of the Nerva–Antonine dynasty.

Did Commodus really fight a gladiator?

Commodus fought against professional gladiators as well as wild beasts. As Herodian wrote, “In his gladiatorial combats, he defeated his opponents with ease, and he did no more than wound them, since they all submitted to him, but only because they knew he was the emperor, not because he was truly a gladiator.”

Did emperor Commodus fight in the Colosseum?

In all, Commodus participated in 735 contests as a gladiator, according to the Historia Augusta. ... Today, Commodus is known as the Emperor who fought in the Colosseum, but his legacy is much larger than that. His rule ended years of stability and relative peace in the Empire, and it was almost entirely his own doing.