the characters are sonic,amy,tails,shadow,silver,jet,blaze,knuckles,and king arther
You can't.
defeat him
you must not beat the game.
There is no way to get multiplayer mode in sonic and the black knight, but you can trade items with others if you have that players wii remote.
The characters you can unlock are Sonic, Tails, Sir Lancelot, Sir Gawain, Sir Percival, Shadow, Knuckles, Blaze, Amy, King Arthur, Sir Galahad(Silver), and Sir Lamorak(Jet).
you unlock king arthur (the black knight) in battle mode
There will be Chip(Light Gaia) in Sonic Unleashed, and Melrina in Sonic and the Black Knight.
Sonic and the Black Knight has an autosave, as do most newer Sonic games.
No. Sonic and the Black Knight is only for the Wii.
Sonic and the Black Knight came out in March 2009.
doff head liker, The golpher, and the red dude.
Only in Battle Mode, but Gawain (Knuckles in armor) is playable.