In this crazy GTA 5 mod you walk around the city with a cat and can occasionally breathe fire. All the GTA games were famous for mods and cheat codes – in GTA 2 for example you could get 99 live by typing in “CUTIE1” or could make all people naked by typing in “NEKKID”.
This firebreathing cat however is something quite different. Nowadays people just have a thing about mean cats. See it yourself: