In Zelda orcina of time in gava gavas belly how do you defeat the wavy thing?

Answer 1

Assuming this is the "wavy thing" you are talking about, you need to get the boomerang by killing the mini-boss (theres two) and get the boomerang, then you use the boomerang on the "wavy thing" and kill it =)

First Kill the tentacle/wavy thingy with your boomerang. You will have hit it several times.(to hit it go close to the center of the room target it then quickly swing! It will take several tries) Then some of the electric ropes will diaper. Go to the rooms that were blocked and repeat the proses With more tentacles ect. Soon all the electric rops will be gone