I use 80W shock oil. It's meant for RC cars so it won't degrade plastic, but you only need a TIIIIINY bit to loosen a joint. You can get a small bottle for 3 or 4 dollars and it'll last you for years. If you need it I think there's a video tutorial somewhere in this thread, or you can go to YouTube to look if you can't find it.

thanks man :)

Yeah it's a really easy thing to do. I just finally got around to putting some on my Ankh two days ago, actually. Can't emphasize enough how little you need though. ;)

I need to now go tighten up some joints on Fourze Cosmic States, though... Did it before with PuToTyra, but IMO it's a more frightening thing to do than using shock oil. Much easier to screw up.

ok using it on a ball joint is obvious, but what about the ryuki hip joint?

I hate self-advertising, but I actually verbally explained a method for applying shock oil to Figuarts hips in a video of mine (Go to 12:40):

https://www.youtube.com/watch?v=igKIJlsoC-A

I also made a video actually applying it to the joint of a Transformer, too if you need an actual video demonstration. All you really need to do for any joint is just get a bit of oil in the joint via some sort of crevice or opening. In addition, TokuNation's own SentaiTamashii made a video about applying shock oil to a GoBuster figure. His is a bit more effective than mine because you can actually hear the difference as the oil works (my camera mic is terrible):

https://www.youtube.com/watch?v=J9DvIOdR3sk

Have fun! Like other members have said, DO NOT use too much or else your figures' joints will be floppy as heck.

ok, thanks :)
ill try finding some tomorow

I just saw a Power dizer on Mandarake. Guess the new stuff should start trickling out now. If anybody comes across a Yellow Buster on there, keep me in mind. The hunt begins!

How much was the Power Dizer going for?

7,000 yen

That's actually not so bad!