MOTHER3i was released on the 6th of February, 2007 in the iTunes Music Store and Napster in Japan, as well as a few other online music services (price unknown). On April 1st, 2007, it was released in the iTunes Music Store in the United States ($9.99).

All music written and arrangement by Shogo Sakai (HAL Laboratory, Inc.)

Source tracks:
01: Fun Naming (002), Welcome! (004), True Welcome! (212)
02: LOG-O-TYPE (017), Something Strange is Going On (117), Run, My Dog, Run! (038)
03: Mr. Batty Twist (026), Rock and Roll (Mild) (144), Mischievous Blues (042)
04: Confusion (044), Somewhere, Someday (039), Gentle Rain (033)
05: Mambo de Battle (055), And El Mariachi (081)
06: Sorrowful Tazmily (046), Morning Already (093), Mind of a Thief (070)
07: Ragtime Osohe (085), Osohe Castle (078), Etude for Ghosts (083)
08: Chapter 3 (103), Monkey's Love Song (104), Open Sesame Oil! (097), Open Sesame Tofu! (098), Monkey's Delivery Service (109)
09: Piggy Guys (095), Unfounded Revenge (088)
10: Happy Town? (126), And Then There Were None (206)
11: Pink Shell (182), Magypsy's Home, Sweetie-Pie (173)
12: Astonishing March (057), Wasteful Anthem (158), Formidable Foe (101), Intense Guys (140)
13: Shower Time Ballad (138), Letter from You, My Sweet (035), Mother?! (168)
14: Porky's Porkies (240), Master Porky's Theme (242), Battle Memory (this is a medley of many battle tracks and not an actual single track in the game)
15: Isn't This Such a Utopia?! (216), Suspicious Flying Object (071), His Highness' Theme (187), Memory of Life (250)