You know somone at IO had a blast spending a whole day writing these 
1:39 “Ninjas are supposed to be all stealth, right? Not walk straight in. Act like a real ninja, man. I’m not letting through here.”
2:30 “Sorry, sir. Only Samurais are allowed past this point.”
2:50 “Please use the dedicated ninja entrance. Oh, you can’t find it? Maybe that’s because there isn’t one! Now bugger off.”
3:18 “Hey! This area is off limits to you, ninja boy. Besides you need to focus on growing the fuck up instead. Understood?”
3:37 “Hey, pajamas clown. Yeah, you can’t pass here. Alright there hobo.”
3:58 “Well if you were a real ninja you wouldn’t be standing here, trying to get in. Would you?”
4:22 “Alright, you can’t go through here. And don’t even think about throwing smoke bombs, or your little ninja stars, or whatever. Coz you’re not getting through. I’m done. Alright, on your way.”
4:44 “Ah, just your luck. It’s astronauts and knights only party at this point. No ninjas I’m afraid.”
6:18 “You may venture no farther. Go tell your master. Now fuck off!”
8:03 “Hey, show me some new moves, ninja. Oooooh. Yeah, whatever man.”
8:22 “A real ninja wouldn’t been seen my anyone. I’d be dead already, shot by a poisonous arrow or had my throat slit. Yeah, you’re a fraud. Like a department store…” [then you beat him up before he finishes
]
8:42 “It’s too bad, I already let a ninja through today. If only you had come as a Roman gladiator instead.”
8:59 “You don’t even look like you’re authorised to pass here. Aren’t you too old to be playing ninja. Grow up, Peter Pan.”
9:17 “Come on, man. Just try be a ninja, okay. You know? Moving in the shadows, hiding in the grass. Be more ninja, okay? Go on, move on, clear the way.”
9:47 “Ahhhh, honoured shinobi. Sorry, no ninjas here today, afraid to say.”