OMFG I'm stuck on CAPTURING the darn Great Jaggi. Can you please multi it out with me so I can offline it and freakin' advance?
Awesome game, though, innit?
What weapon do you use? To be blunt I prefer the hammer (although it requires a lot of sharpening for some reason).
This site's very helpful:
http://www.gamefaqs.com/wii/943655-monster-hunter-tri/faqs
All big monsters have weak areas in their armor that change if you have a cut or impact weapon.
(Spoiler alert: you see outlines of every major monster)
http://www.gamefaqs.com/wii/943655-monster-hunter-tri/faqs/59518
http://www.gamefaqs.com/wii/943655-monster-hunter-tri/faqs/59517
Hit them where it hurts. Big monsters have 'blind spots' too or places where they have trouble hitting you. I've found this is almost always to the left or right and behind the head or between the legs behind the head. Strangely, you're safer right next to the monster. Keep in mind I use a hammer which charges as I move; weapons that block will be different. Go out of the area to heal/sharpen weapon etc. Monsters always favor one side to tail swipe so go for the opposite side. They have several attack patterns but it's an attack and counter game. Finally, monsters are much fiercer near death.
You'll eventually need to combine items, buy the books of combos from the 'gal with the goods' to improve accuracy. Useful combos:
Sap plant+paintberry=paintball
blue mushroom+herb=potion
potion+honey= Mega potion
stone or iron ore+sap plant=bomb casing
bomb casing+tranquilizer=Tranq bomb
Ivy+Spider Web=Net
Net+trap tool=pitfall trap
thunder bug+trap tool=shock trap
That's enough for now. Keep at least 1 of each type of plant, seed, bug, mushroom, and honey in your item box so you can raise more in the farm later. Dragon Toadstools will create great items later in the game.
Capturing:
Grab the blue box supplies and always take the map. Bring your own supplies too.
Before you draw your weapon throw a paintball at the boss, bring a few extra because the hunter throws like a girl. When marked a pink dot will appear on the map. This wears off over time and might need to be redone. Pound the monster until it limps away, follow it and repeat. After the second beating it should be almost dead. Monsters have areas of the map they go to as their health drops. Kill the weak herbivores so the boss can't eat them for health. Eventually the boss will go to their nest to sleep. This location is always the same for that monster in the area. When it goes there don't enter right away, wait and watch the pink dot on the map. It will stop moving in a short time- this means the boss is sleeping. Run in with your weapon sheathed and setup a trap on the sleeping boss (ignore the lower monsters). Speed setup skill decorations help. The boss will struggle in the trap, bombard it with tranq bombs. Monster captured.
Great Jaggi will sleep in area 5 of the Sandy plains. In the desert sand areas use cool drinks during the day and hot drinks at night- Great Jaggies won't visit these areas anyway. It's face is weakest, hit there when it calls for help. Otherwise attack and dodge in it's blind spot (behind the head and to your left I think). If you need to clear out the small monsters keep moving and hit the ones away from the Great Jaggi. If you move around it has troubling attacking you. The only major threat is it's lunging tail swipe which it can chain at low health. If you're worried, fight by an area exit for quick retreats. Once you learn the pattern it's not too hard.