Since forum members or outside people can create and host their own packages as non officially made by SMW design staff we can rip off pictures from other games? such as new super mario DS?
I think the game should have at least two graphic interfaces (or better listing sprites under categories, such as the game they came from), as I see this works beautifully with the title sets, so basically what I mean is that the game is really fun, but not that beautiful, mostly because of some sprites! So, what I say is that the sprites must have a two quality standard, something like Snes/GBA fake 3-d and Nes-classic view. Do you plan to make some sprites better for some actions that other (such Diddy Kong can jump higher, or Yoshi float in air, kirby floating in air and those stuff, or is this just to much smash?) If you do so, it wouldn't be nice to put all those sprites on the garbage because of this addendum, unless those old ones only jump sprite are the ones set on the handicap settings, (even although I think it can become a lot funnier if they do have different abilities).
But the mostly important question can I rip the original images and resize them to fit the game? Well, in real Mario, sprites should grow up when with a red mushroom, Wouldn't there be need to making at least a bigger version of some Sprites (or something different in some of them, such as a bigger hat, head, etc?)