Try to play the training mode.
There you can select almost evry character!
Kirby must work evry time but mr.Game and Watch not!
Sometimes i can select Link but only sometimes
If you have selectet a character go to a Mushroom Kingdom Map (1 or 2)...
In the Training mode you can make the game faster by adjusting the speed parameter in the select menu at 2 Times!
Try and enjoy!