It'd probably look a lot less bad (still bad) on the actual resolution of the DS. I want to say that but it's not like it saved the rest of the game's assets.

I get the feeling that Tails, Knuckles, and maybe Amy had their icons loosely based on or at least inspired by their Advance 1 icons (though obviously you'd need to ask the people at Bioware, since the other Advance icons are a bit... odd-looking). At a glance, Shadow's icon seems to be at least inspired by Sonic's as well, and Shade's might be based on Knuckles' Advance icon, though it is a little bit of a stretch. Worth noting that there seemed to be a style going on with the Chronicles icons and the Battle icons seem like they'd clash with the game's visuals, so Sonic's Advance icon seems to be the only previous one that really fits (and even then, barely), and it's worth noting that Sonic map icon doesn't really fit well with them. Personally, the Chronicles icons look fine to me outside of Sonic kinda clashing with them. (And since it's gonna drive me nuts, that's actually Omega in Chronicles, not Gamma.)

It seems like the Character Icons suffer from art direction, as some of them have proper outlines while others appear to rely on just colors, like Amy's and Tails' icons.

You can certainly feel that this was a rushed product, considering Shade was the last party member of the game. Big's ico was awkward as hell and Shadow had SOME semblance to his Battle icon. Gamma was literally RIGHT THERE to use as a reference for Omega, being from the same line of robots (E-Series). This is the only time we also get Big's icon outside of the 3D games, with a little touching up it could be more usable.

Dang i did not know that

I find it interesting how they re-edited Sonic's icon from Advance 1, but made all of the other character icons from scratch. None of the other characters' icons have that close of a resemblance to any others, especially considering Shadow, Rouge, Gamma, Eggman, and even Cream were in Sonic Battle. You can even see some added pixels on the bottom of Sonic's sprite that don't match the palette they had, which was also edited.



(also, yes, I see that one of the map / HUD icons is different for Sonic)