Press Pick (x2), Red, Blue, Red, Blue, Green (x2) at the mode select screen. Then choose Expert mode. (A cheering crowd confirms correct entry.)
Press Red, Green, Blue, Pick (x2) at the mode select screen. Then choose Expert mode. (A cheering crowd confirms correct entry.)
Press Pick, Green (x2), Pick at the mode select screen. (A cheering crowd confirms correct entry.)
Press Red, Blue, Green, Blue, Red, Green at the mode select screen. (A cheering crowd confirms correct entry.)