Arceus is a legendary, and all legendary's except manaphy do not evolve. Hope this helps.
oddish
Yes.
Ditti Is a Pokemon That Is the Evoltion of a Pokemon called Ditto
yes
before the universe. hecreated the universe
Arceus has no cheat code for Leaf Green, because Leaf Green was released years before Platinum, Pearl and Diamond in which Arceus first appears.
Triple H, Ric Flair, Randy Orton & Batista
A friendship evolotion is when something likes you so much it evolves
you do not necesarely have to beat the elite 4 to get arceus mostly because you can only get it via hack.
Ash and friends go back in time before poke balls were invented and save the legendary Pokemon arceus
No where unless you cheat or get loudred to level 40
Do you mean Togepie? He evolves into Togetic, a normal type.