There are a number of shops throughout the game; in Jets of Time they will have randomized contents, and depending on flags, they may also have randomized or free prices.
Shops contain equipment and items.
|Shop Location||Time Period||Tier||Guaranteed Items|
|Millennial Fair (Armor)||1000AD||Regular|
|Millennial Fair (Items)||1000AD||Regular|
|Kajar (Nu) #1||12000BC||Good|
|Kajar (Nu) #2||12000BC||Best||Amulet|
|Black Omen (Nu)||N/A||Best||Amulet|
|Millennial Fair (Melchior)||1000AD||Special||(see below)|
Melchior's shop at the Millennial Fair in 1000AD is guaranteed to have exactly 7 items: 1 katana (for Crono), 1 sword (for Frog), 1 arm (for Robo), 1 gun (for Lucca), 1 bow (for Marle), Revives, and Shelters.
The weapons are chosen from the following, all of which are near the middle of each character's list.
For Crono: Flint Edge, Dark Saber, or Aeon Blade
For Frog: Flash Blade, Pearl Edge, Rune Blade, or Demon Hit
For Robo: Stone Arm, Doom Finger, or Magma Hand
For Lucca: Ruby Gun, Dream Gun, or Megablast
For Marle: Sage Bow, Dream Bow, or Comet Arrow
The Nu in Kajar (12000BC) has two shops: one when talked to from the side (marked #1 above) and one when talked to from above (marked #2 above). They will have different items, and are in different tiers, as detailed in the table above.