Lol what do you mean?
Mario DS, Mario DS with the tenuki suit, Mario DS with more coins, Mario DS with Yoshi, Mario DS with Yoshi and multiplayer.
Then came Mario 3D, and now the new one... Mario 3D with Catsuits and
9 new minigames!
Oh boy! Why make an all new Mario game when we can take an older formula and plug old stuff into it!?
"Hey, remember this old thing? Yeah, we put it and it alone into your new Mario game for nostalgia! It adds nothing to the game, but hey... remember the good times?"
That's what I mean.