In an account that described the Spaniards' entry into Tlatelolco, Tzilacatzin was identified as one of the three brave warriors who led the Tlatelolca side, along with Tzoyectzin and Temoctzin.
Initially the warriors did not dare attack them but Tzilacatzin who was strong of arm killed several Spaniards by throwing stones at them.
[2] The Spaniards focused their fire on Tzilacatzin but he cleverly evaded it and proceeded to disguise as a common soldier in order to not attract attention.
[3] He was also said to have used different implements to change his appearance such as a hairpiece made of eagle feathers and accessories (e.g. golden earplug, shell necklace, lip pendant).
Later when brigantines landed in the district called Xocotitlan, they were forced to return to the boats and flee by Tzilacatzin and his men.