Colors song:
Trade the Little Rock, Arkansas flag in Quest mode to unlock the Colors Midihead's Sapphire Mix song.
Danca de Yuka song:
Successfully complete the Rock-a-billy Willy song on all three difficulty settings to unlock the Danca de Yuka song. Alternately, trade the Concord, New Hampshire Flag in Quest mode.
Ever Snow song:
Successfully complete the BREAK DOWN and Firefly songs to unlock the Ever Snow song. Alternately, trade the Bismarch, North Dakota flag in Quest mode.
Frozen Ray song:
Get an "A" rank on any song to unlock the Frozen Ray Dirtyhertz Mix song. Alternately, trade the Jackson, Mississippi flag in Quest mode.
Guidecca song:
Trade the Nashville, Tennessee flag in Quest mode to unlock the Guidecca song.
Hinawari song:
Trade the Charleston, West Virginia flag in Quest mode to unlock the Hinawari song.
Insaner song:
Trade the Dover, Delaware flag in Quest mode to unlock the Insaner song. Alternately, play the credits game twice.
Jelly Kiss song:
Successfully complete ten songs to unlock the Jelly Kiss Midihead's SMAK Mix song. Alternately, trade in the Newfoundland flag in Quest mode.
Legend Of Max song:
Trade the Phoenix, Arizona flag in Quest mode to unlock the Legend Of Max song.
Love This Feelin' song:
Get an "AA" rank on any song to unlock the Love This Feelin' Zonk Remix song. Alternately, trade the Yukon Territory flag in Quest mode.
Music To Your Head song:
Trade the Santa Fe, New Mexico Flag in Quest mode to unlock the Music To Your Head song.
Parade of the Wooden Soldiers song:
Trade the Phoenix, Arizona flag in Quest mode to unlock the Parade of the Wooden Soldiers song.
Rainbow Flyer song:
Get an "AAA" rank on any song to unlock the Rainbow Flyer song. Alternately, trade the Victoria, British Columbia flag in Quest mode.
Right On Time song:
Trade the New Brunswick flag in Quest mode to unlock the Right On Time song.