Gelg Bolm, has something interesting in it. If you collect Moo
* too early and hit Gelg quickly the opposite Moo will not go in contrast of delaying for a bit (letting Moo hitting the ground, grabbing it then hitting Gelg will allow the other Moo to go.... *Moos like a cow*).
Because of the change it's possible to beat this boss in under a minute if optimized to perfection (I got 1 min dead, with 2 "hiccups" at the end, easy to fix). At hits 3 and 4 (when Gelg is in the air at first) grab a Moo from either left or right side and walk to the center. Depending on the side the non carried Moo is be on the same side allow Gelg to drop and hit it you'll realize Gelg goes to the opposite side you through which gives you full access to reach the other Moo before "Jumping off the cliff".
The final form (after hit 4) make sure a Moo has come down, grab it, allow the big ball to inflate and jump on it, a worthy damage abuse to use as if you didn't use it Moo would've gone and you'd have to wait for another. This allows an earlier hit on Gelg as well as you're not waiting around.
The Wii version is different and I'm not going to explain unless someone asks.
*This is Moo