Ninja vs Índio Brasileiro.

[Paz e amor.]

Local: Floresta Amazônica.

Intenção: Incapacitar/matar.

[Nerd Supremo]

Ninja, muito mais técnico, estratégico e melhor armado

[Ignition]

o ninja tá fodido. ele precisa agir nas sombras e na furtividade.
os índios mandam nas ongs e queimam mata à toa (que nem queima tanto mas conseguem enganar até os satélites da nasa).
logo tem lobby do ESTABLISHMENT e destroem onde os oponentes esconderiam.
seria um massacre.

[Monk]

Perdido no meio da floresta sem conhecer nada? O ninja tá fodido, ia morrer sozinho.
Num combate o índio não tem chance

Edit: A propósito, ex-militar americano descrevendo a floresta amazônica:

https://www.quora.com/Can-a-man-survive-in-the-Amazon-Rainforest

Spoiler!

Ok, I'm sorry if I seem critical but there are answers about this question that seem too sugarcoated and not based on experience. Someone even reference an episode of Survivorman. I've been there. I was in the Army and was fortunate to have the backing and vast resources of the U.S. government. We were there for training as a very small unit.
I'm going to give you the bare bones here. If you were just dropped into the Amazon, or any jungle for that matter- NO, you cannot survive.
You have to understand that it is an extremely harsh environment. It is as though EVERYTHING is trying to kill you. Venomous spiders, snakes just to start. Leaches, poisonous plants, unbelievably aggressive ants, parasites.
The climate is very humid and can be sweltering in the day, COLD at night. EVERYTHING you touch is wet. If it isnt wet- something probably lives there that is meaner than you.
Let's say just for a second that you are dropped in with everything you would need to survive on foot. Weapons, medicine, portable shelter, even a survival guide book. It still wouldn't be enough. You would need an enormous amount of training to survive, and we're not even talking about the length of time you’d be there.
I'm not kidding when I say this- the Amazon is HOSTILE. How would you treat mold/mildew growing in your arm pits? Something as simple as that can kill you. What about purifying water? There are things that live in the water, horrendous things. Here's a real nail biter- we haven't even discovered everything that lives there.
People may say, well there are already people that live there……
Those folks are indigenous. I've met them, the natives. Eaten with them. Even THEY are extremely careful.
While I was sitting there with a basketball size swarm of mean ass mosquitos around my head (24/7, btw), the natives weren't getting bitten by anything- and didn't use any kind of bug spray or anything.
Let me tell you, I watch survivorman for comedy relief. That crap is so refined and over cooked to make the audience think they're seeing something raw and ‘real'. No, it is simply strategic placement into well known and survivable places, with a legion of people and experts providing advice and support for one person “roughing it".
Take in mind that there are different kinds of jungles. Some are rainforests. Some more arid, some mountainous, some FLAT. Many are impassable, some are but they are HARD to traverse (think marsh or boggy swamp).
I particularly enjoyed the Honduran jungle. It was much drier and friendlier. Yet even then, it was still a nightmare compared to the woods here in Arkansas.
I've been around the world. Deserts, mountains, north west forest, florida swamps, etc.
NOTHING was even close to the Amazon death trap.
Now, all the above- and I haven't even touched on the human element in the Amazon. They will kill your ass and you will never be found. They're not everywhere, but I can promise you that those folks can sneak up on you at any time of day and you never hear a peep.
Sorry for any typos.

[Bimmy]

É, Monk já definiu essa se eles começarem em pontos diferentes. A floresta é tão diferente do que existe no Japão que não tem como o ninja sequer sobreviver o bastante pra ver o índio.

Quanto a luta direta, ainda aposto no brazuca. Ninjas eram assassinos furtivos, afinal, enfrentar um caçador armado frente a frente não tá no currículo deles. Ia ser só uma flechada e pronto.