Zombie pig right?
a monster mob in minecraft
Its a server plugin called mob disguise.
Go to minecraft wiki and do a search for "mob grinder" and it gives you a tutorial of how to do it.
You cant find a giant mob in vannilla minecraft but you can sumon him using a command or a spawner.
no
a bat
Mobot
by using spawn eggs or mob spawners with a mob in them
witherboss
It is impossible to ride a wolf in Vanilla, however you can do something similar in a mod called Mob Bikes.
Yes, there's a mod called "Mod Disguise" that lets you transform into any mob.
The first mob in Minecraft was the Human, which could be spawned by pressing G and looked like Steve. It was later removed in Classic.