The first will be easy.Run,grab and attack.2nd will be...easy too.Find the weak points and attack!The third is a harder serpent.When you destroy a weak point,he spit bubbles.Bash the space bar to get out.Kill all the points and you win.Next...sometimes he spit a mudy things from holes on the body.Find the weak points and kill it.5th is not too hard if you are a master playing this.When you destroy the weak points,a horn appear.Next is hard!He moves fast,and grab on the mid point(protected now),and wait it appear,attack and continue grabbed.He will spit an elemental ball that pursues you.Kill her.8th like 7th.He have more weak points and moves a little faster.When hurt,horns appear from holes.Next...IS HARD!When you destroy one or more weak points,jump.And the fire don't will hit you.10th is a HARD FOE.Be fast,he fly on a serpent way,and you will be hurt by the horns if not be fast.11th is hard to not fall trying to avoid the shocks.(Shocks?)Yes.He can use shocks like an armor.Find the weak points,but BEWARE OF THE SHOCKS.Next...sometimes he changes the weak points.When you destroy one,protect yourself from the fireballs.13th spits toxic from the holes around the weak points.
A tip:kill the weak points faster and the toxics stops.14th IS A VULCAN SERPENT!If you stand grabbing on it,he explodes.Find the weak points and kill him.Finally,15th.He is fast,and spit elemental balls.He have a large body,best speed than 7th.He spit elemental balls too.Maybe this helped.