is it a game worth playing??

i have heard that it was really good and i was wondering

SP is really good, and pretty hard. Havent tried multiplayer yet.

Its easy if you know the stage. But most the 00 agent missions are very hard. Some of thesecret agents are very tough too but I use to do most secret agent missions easy.

I didnt know the stages on my first playthrough, did you?

I just watch people and learn all the stages. Or get a guide on how to do the stages.