Yes, the real Ansem (Ansem the Wise) was a good guy. He was just confused with the idea of getting revenge on his apprentice, Xehanort.
Xehanort had stolen the idea of studying and using hearts for darkness, which turned Xehanort into a Heartless called Ansem and created a Nobody named Xemnas.
Until Ansem the Wise met Riku, Ansem thought revenge was the only way. When he saw that Riku released his inner darkness to help save his friends, Ansem realized that revenge is wrong. Since then, he had been helping Riku fight the darkness.
yes he sacrificed his life to save everybody
There was no Ansem in Kingdom Hearts 358/2 Days. However, there was Riku-Ansem (Riku's dark side) but Riku was still a good guy. In the other games, Ansem the Wise is a bad guy.
SpoilersXehanort had turned into a Heartless that called himself Ansem and controlled Riku. So technically, yes, it was Xehanort, but then no, it was his Heartless. The point is, the real Ansem was a good guy, not the one controlling Riku.
Riku-Ansem looks like the fake Ansem.
He didn't know
Just go to a good cheat site. I know a good site with a fantastic guy: www.gamefaqs.com and search 'ansem' at the site and click on the faq made by a guy named 'Loxudes'. Weird name, but fantastic walkthrough.
No. Xehanort's Heartless (the fake Ansem) looked like Ansem the Wise (the real Ansem) but a lot tanner.
SPOILERSAnsem is a scientist who's later known as DiZ. The real Ansem never became a Heartless. Xehanort is Ansem's apprentice and first experiment. Xehanort later named himself Ansem when Xehanort became a Heartless.Xemnas is Ansem's Nobody.So there are two Ansem's (the imposter Xehanort and the real one named DiZ).DiZ uses Darkness, while Xemnas uses Nothingness.Ansem (Xehanort) and Xemnas are two halves of Xehanort.
It depends on who "Ansem" is, because there are really 3 different "Ansem"':One is the real Ansem the Wise who disguises himself as DiZ because the other 2 Ansem's take his identity.One fake "Ansem" is Xehanort's Heartless, who calls himself Ansem but is really the antagonist of KH1.The third "Ansem" (the second fake Ansem) is Riku-Ansem: after Riku takes off his black blindfold at Memory's Skyscraper in order to gain enough dark power to defeat Roxas, he permanently turns into Riku-Ansem, who is really Riku but now looks like the other fake Ansem and has more combat power.Since all Nobodies are created from the creation of Heartless, Xemnas is the Nobody of Xehanort's Heartless, Ansem.
To conceal his real identity as Ansem the wise.
Ansem the Wise, is the original Ansem, in KH 1 the Ansem they go by is a heartless, with the replica of his understudy, who is the same as Xeanhort from KH 2, Ansem the Wise is the Ansem that made the Ansem reports. Ansem the Wise is the body of Ansem Heartless (KH 1), Xeanhort is the nobody of that heartless, and he is Terra from Birth by Sleep, who was infused heart and soul with Master Xeanhort, the old man from the trailer. Sorry for the spoiler. Terra and Master Xeanhort were fused and that is why he is younger than Master Xeanhort, nd hwy he looks like Terra.
Very complicated. His true name is essentially Xemnas. But, if you mean as a human, he took the name of Ansem, but his true name was Xehanort.
Xmnas is Xehanort's nobody and Ansem is Xehanort's heartless. So, basically they are all the same guy. Ansem already tried to take over Riku's hearts so they already have a score to settle with him.