Just because Nintendo introduced the Super Guide for New Super Mario Bros. Wii doesn't mean we should expect it in every new Nintendo game. Speaking with the Official Nintendo Magazine in the UK, designer Shigeru Miyamoto said he hasn't decided whether Super Guide, which allows players to let an A.I. take control of the on-screen action to pass difficult portions, should be in Super Mario Galaxy 2.
"Well, as far as the challenge of Super Mario Galaxy 2 is concerned," he said, "I think it's going to be a really challenging game, but whether or not we are going to incorporate the Super Guide, I just cannot tell. In general, wherever and whenever appropriate, I think we will want to incorporate that kind of thing, but I cannot commit to anything specific right now."
If it's not a technical challenge, Nintendo would be wise to include the Super Guide feature in more of its games. Becoming selective with its inclusion mean frustrating consumers who become accustomed to the hand-holding help in New Super Mario Bros. Wii might naturally expect a similar feature in Super Mario Galaxy 2. No doubt Mario's second 3D adventure on the Wii will be more difficult than New Super Mario Bros. Wii, reinforcing why the Super Guide makes even more sense.
Source: Official Nintendo Magazine