Do tattoos hurt?

For me it feels like a cat scratch. For an hour and a half or more.

Yes, but not as bad as everyone makes it out to be. The pain also varies depending on where you get your tattoo.

Worst part is under the arm toward the armpit, or the bone on your ankle. Everywhere else feels like a constant ongoing scratch.

That is a bad ass samurai! I have never felt pain from a tattoo, and I have 18 if them ranging from my neck to the top of my feet.

Tattoos? No. Putting them on your skin? Yes.

and then your addicted and want more...

Yeah I've gotten four. I mean obviously you're getting stabbed with a tiny needle millions of times so short answer: yes. Worth it? Absolutely. And I agree with @theincredibleme it doesn feel like a cat scratch, so not too terrible. More so just uncomfortable and annoying.

Depends where on the body and how you endorse pain

The vibration of the needle kinda numbs the area for me. It's pretty soothing, actually.

isnt that the bad guy in Mulan?

Nah, tattoos don't hurt. It's the process that hurts.