From Sonic Retro
These Sonic and the Black Knight screenshots - did you take them?
I know Dolphin or whatever will let you run games at crazy high resolutions, but we're more intested in accuracy, so the correct resolution would be the Wii's standard 480p (the same size as those cutscene screenshots). You can see the problems in a few of those screenshots - the assets weren't designed for more than 480p, so textures start looking blurry and models start looking more angular. The 2D HUD elements in particular tend to get hit the hardest - it's not representitive of what the game is meant to look like.