this is also a question i'd like to know.

oh the tip of the colour of the tentcles,they're textures but the link was removed

That is the alternate model for them. If you look through your files, you may find ones with the suffixes "_alt", "_alt_ik", and "_ik". The ones with the "alt" in them are the short haired ones (aka the male hairstyle). The ones with "ik" are the ones for the IK rig.

For me I use the alt models (non ik rig) [for boy models] and in the materials (right clicking the model In the animation thing there's "add override materials. Click on that and again right click it again and go to " show in element viewer" and click on "Model) after that right click the" teamcolor alts (both cuz there's 2)" then right click and "add attribute" go to float and type in $alpha for both team color alt and teamcolor 2 alt. From there get the hairstyle of your choice and lock the bip heads together and zero them. [For the girl Models] also I use apt and for that I go to Unknown in the model and look for the "bip HairBand root" right click and "add scale control to transform". After that the scale control is at the bottom at the Unknown list. The scale transform scale it all the way left until the tentacles have disappeared compleatly. Then do the same process as the boy to go to the element viewer. But this time do the "add attribute" to the teamcolor alt. U cand do both but I just do the teamcolor alt (i didn't do the 2nd one) do the same locking process like the boy one as to the girl hair of your choice