Try playing as Magikoopa, he's really good. Oh wait, Nintendo didn't put him there... =( I think they should've kept DK there but make Magikoopa a secret character (and to obtain him, you'd have to race him on a secret stage you get by beating him also. Of course, the stage would be, like, "Magikoopa's Fortress" or something).
Do the Mario! Swing your arms from side to side, come on, it''s time to go do the Mario! Take one step, and then again, let''s do the Mario all together now! You got it! It''s the Mario! Do the Mario! Swing your arms from side to side, come on, it''s time to go do the Mario! Take one step, and then again! Let''s do the Mario altogether now! Come on now! Just like that!