can you still use the old rules of galactus if you're gonna be using the old galactus? for example, is the old galactus' cosmic multiattack still applicable in the present? or, you have to follow the multiattack power of the cog?

Galactus, original version, still uses his own rules. In fact, the Player's Guide tells you that where Coming of Galactus' overlaps with Galactus to use Galactus' clarifications.

From the Player's Guide:

hmm, but those are clarifications only, how bout the special powers that galactus has? Like cosmic multiattack..

Cosmic Multiattack still works as written. There is no errata removing it.

(What I meant by the quote was that Galactus, original version, controls Coming of Galactus. Not only hasn't Galactus, original version with his Cosmic Multiattack not been replaced, but Coming of Galactus looks to him for guidance.)

no thery are different. the original still has cosmic muti-action. which gives him 3 separate actions per turn. move or power or attack action. in any order or use. but the new galactus can only use muti-attack power. which grant you two separate attack actions -1 damage on the second attack.

To answer another question. If you have the original Galactus and you want to play him in a Modern event ask the venue Judge if it is ok to use him. The stats that matter are the same and you should be able to use him with the CoG rules.

But again, that is to the discretion of the judge.

While you have the effect right, it actually is called the Cosmic Multiattack. (CutieBoy_103 was correct.)

From the Galactus Rules:
You are combining the Multiattack ability and the Duo Attack bility. With the Multiattack ability, the damage is reduced by 1 on each attack. (But you can use power that include an attack, ranged combat, and close combat actions, not just attacks.)

From the Blackest Night PAC:

read what i said!!! thats what i said!!!! the old way the power worked you could use a move action to move then take two attack actions. range or close combat attacks. or you could take all move actions or all range or all close combat actions. the new way whatever action you take must end in a attack roll being made. so yes a power action to use TK in a attack. or range & close combat actions. but no move actions can be used. since there aren't any transporters colossal figure made yet. but if there every is one then you could take two move actions aka move & attack along with a muti-attack. this would also be true with a big fist figure. but as i said which is still true. you can only muti-attack with all colossal figure now. except the first galactus.

oh and sorry about the miss quote on the -1. please forgive me if i confused anyone. muti-attack is all one action not two separate actions.yes two attacks but one action.

Not sure which part of my answer upset you.

The Move and Attack ability uses HSS now so it requires a power action, not a move action.

From the Blackest Night PAC re: Move and Attack:
From the Blackest Night PAC re: Hypersonic Speed:
It's one overarching action with two free actions in it that can be used for actions, not just attacks. You keep using the words action and attack seemingly interchangeably when they are not interchangeable in Heroclix.

oh now i understand! so in playing a game with him, you do have the option of fielding either original G or cog G, right?? well, i would choose original G if that's the case! (of course, only in golden age..)

Correct. (Unless your judge has a problem with it.)

ok! thanks for the enlightenment!

Actually, you SHOULDN'T be able to use him with the CoG rules. They are two separate figures with different collector's numbers, special rules, and (slight) wardrobe changes. The original Galactus uses the original rules (modified by any errata in the player's guide), including the Cosmic Multi-Attack. The Galactus from the Coming of Galactus uses a separate set of rules, giving him the Multi-Attack ability listed in the rulebook, but not the Cosmic Multi-Attack. The two versions are not interchangeable, and Norm specifically states that only the "Eater of Worlds" version falls under the "Modern Age" category. I don't mean to get on your case about this; I just wanted to make sure that people didn't get the false impression that the figures are interchangeable.
And you got the really important part right: when in doubt, Ask your judge.

I think what he meant was both actions have to be attacks. You can't move via L/C or P/T with Multi-Attack and then do a range or close combat action. Each of the free actions you give the colossals has to include an attack