on the back of the game cace it shows him with a blueish think accross his chest (sub-zeros armour?) and other things, and when u fight with him he has scorpions spear behind him, is there any other way to alter his appearance when he is old

To do that, you must have unlocked his alternate costume in the Krypt (at least I think he has an alternate costume).

He has an alternate costume, but the reason he has Scorp's spear is that you can use it as one of his special attacks. You have to get it in Konquest.

i know, i got the spear in Konquest, but how do u get the other stuff

That's a diffrent costume all together. You need to unlock it in the Krypt, like someone said before.