If you're on a long fall to the ground, jump right before you're about to hit the ground; no health lost.
To get all the hunters, play single player and get 22% through the game. ( I believe. ) You will have 50% of the Octaliths by this time as well.
Samus: Guided missle
Kanden: Electric balls; dissorient enemy
Trace: Invisability + Sniper
Spire: Ball of fire grenade launcher
Weavel: Grenade-Launcher like green bomb
Sylux: Electrical weapon
I.M.O, the best Hunters in order:
Any other help any of you need just hit me up an email.