This is relevant. The Aztecs were very able to slaughter the Spanish in the alleys/canals of Tenochtitlan itself:
https://en.wikipedia.org/wiki/La_Noche_Triste
If it weren't for an epidemic of smallpox, the Spanish would have to conquer Tenochtitlan at a very high price in blood. Urban combat negated a lot of the advantages of European steel.
This is relevant. The Aztecs were very able to slaughter the Spanish in the alleys/canals of Tenochtitlan itself:
https://en.wikipedia.org/wiki/La_Noche_Triste
If it weren't for an epidemic of smallpox, the Spanish would have to conquer Tenochtitlan at a very high price in blood. Urban combat negated a lot of the advantages of European steel.