Key Items are collected after finishing dungeons, quests, or from NPCs. These will be shuffled within the checks in every seed of Jets of Time.

The Gate Key is a device invented by Lucca to operate Time Gates. You are not required to hold the Gate Key to step into any available Gate in Jets of Time; the only Gate it unlocks is the Gate to Prehistory.

• Opens Gate to Prehistory (65,000,000 BC), located in the cupboard at the Imps' house in Medina, 1000 AD
• Access to Reptite Lair (Key Item check)
• Access to Dactyl Nest (Character check)
• Access to Tyrano Lair (Go Mode dungeon)
• Access to End of Time (after falling down the mountain when entering Prehistory, run back up and fall into the Gate to go to the End of Time)
• Access to Prehistoric Sun Keep (required to drop off the Moon Stone)
• Opens Gate to Dark Ages (12,000 BC) via the End of Time
• Access to Terra Cave/Mt. Woe (you may not enter the Kingdom of Zeal until completing either Tyrano Lair or Magus's Castle)
• Required for Tyrano Lair to Ocean Palace Go Mode

Marle's pendant which has been passed down through her family for generations. It once belonged to Schala, Magus's older sister and the princess of Zeal Kingdom. When charged with energy it can open sealed chests and doors. In most standard flags you are not required to charge the pendant at the Mammon Machine before it can open doors, it will activate once you use it to access the Future.

• Opens the Future (2300) AD via the Trial quest: enter Guardia Castle in 1000 AD and present the pendant to Pierre, the lawyer (he will be standing at the base of the stairs at the entrance to the castle opposite a soldier). Once you have defeated Dragon Tank, you will go through a Gate to the Future.
• Opens sealed chests and doors: in standard flags, this will be enabled once you have landed in the Future. You may open the sealed doors in Bangor, Trann, and Arris Domes, and the various sealed chests located in 600 and 1000 AD.
• Access to Arris Dome (Key Item check)
• Access to Sun Palace (Key Item check)
• Access to Geno Dome (Key Item check)
• Access to Proto Dome (Character check)
• Access to Factory (Grants Access to End of Time)
• Access to Future Sun Keep (Required to pick up a charged Sun Stone)
• Access to Keeper's Dome and Death Peak (Go Mode dungeon)
• Required for Death Peak to Black Omen Go Mode

A brilliant red mineral that used to exist in large quantities in prehistoric times, but has been virtually eradicated in the present. It unlocks the upper floors of the Tyrano Lair when placed on the button in the cell in the basement (where Kino would be kept in the vanilla game).

• Required for Tyrano Lair to Ocean Palace Go Mode

This dagger was crafted from Dreamstone by Melchior in order to oppose the Mammon Machine. It opens the sealed door in Zeal Palace that leads to the throne room and the Ocean Palace.

• Required for Tyrano Lair to Ocean Palace Go Mode

The titular artifact was created by the Guru of Time and may have the power to manipulate the time stream in order to restore life. Given to the Nu in the back of Keeper's Dome in 2300 AD along with the Clone, it grants access to Death Peak.

• Required for Death Peak to Black Omen Go Mode

An doll with an uncanny resemblance to Crono, used to restore him to life after his unfortunate run-in with Lavos in the vanilla game. Given to the Nu in the back of Keeper's Dome in 2300 AD along with the Chrono Trigger, it grants access to Death Peak.

• Required for Death Peak to Black Omen Go Mode

The blade of the Masamune, separated from its hilt. When both pieces are given to Melchior, he will reforge the sword, which Frog can use to open up Magus's Castle.

• Required for Magus's Castle to Ocean Palace Go Mode (Frog also required)

The hilt of the Masamune, separated from its blade. When both pieces are given to Melchior, he will reforge the sword, which Frog can use to open up Magus's Castle.

• Required for Magus's Castle to Ocean Palace Go Mode (Frog also required)

A shard from the Rainbow Shell, a treasure found and kept safe by Guardia Kingdom in the year 600. Used in 1000 AD as evidence to prove the king has not stolen and sold it. Bring to Guardia Castle in 600 AD, and after the King agrees to retrieve the shell, travel to 1000 AD and bring Marle into the castle. Proceed to the courtroom to begin the Rainbow Shell quest.

• Access to Rainbow Shell quest (Marle also required) which grants a Key Item
• Once Rainbow Shell quest is completed, the Moon Stone quest may also be completed

So called when it has run out of energy, this was once a Sun Stone, an incredibly efficient and planet-friendly source of power. It must be charged before it can be used again. Drop the Moon Stone in the Sun Keep in Prehistory, then travel to the Future to pick up the fully charged Sun Stone. Then bring the Sun Stone to Melchior in the basement of Guardia Castle after completing the Prism Shard quest to receive a Key Item.
Please make sure to wait until the fanfare has finished playing after you pick it up (if your characters are moving, you'll notice they freeze for a moment when it finishes) to exit the Sun Keep, otherwise the Sun Stone may not be added to your inventory.

• Grants a Key Item when given to Melchior in Guardia Castle's basement (Access to Prehistory and the Future, the Prism Shard, and Marle, and finishing the Prism Shard quest required)

The Masamune, known as the Grand Leon in the Japanese version of the game. This is the powered-up version of the sword and Frog's ultimate weapon. When in your possession you may hire the carpenters in 600 AD to repair the floor of the Northern Ruins in Choras (this replaces the Tools in vanilla).

• Access to Northern Ruins quest, which does not grant Key Items, but visiting Cyrus's grave with Frog will grant him a permanent +10 to Power and +2 to Speed
• Frog's ultimate weapon

This emblem is said to be carried by the Hero who will save the Kingdom of Guardia from evil. It opens the treasure chest on the right side of Frog's Burrow in 600 AD.

• Opens the treasure chest on the right side of Frog's Burrow, which grants a Key Item
• As an equipped accessory for Frog: Raises the critical hit rate of the Masamune and the Grand Leon (as in vanilla), in addition it grants Frog the effects of Prism Specs and automatic Barrier and Shield.

A can of Toma's favorite definitely non-alcoholic drink. Pour it on his grave at the West Cape of Choras in 1000 AD to speak to his spirit, who will open up the Giant's Claw dungeon in 600 AD.

• Access to Giant's Claw, which grants a Key Item

A gift from Atropos, another of the R-Series robots, to Robo. In vanilla it grants permanent boosts to some of Robo's stats; in Jets it is an equippable item.

• Gives Robo +3 to Speed, the effects of Sun Shades and Sight Scope, and auto-Barrier

Delicious Jerky represented by the pink-wrapped lunchbox icon. Give it to the women in the kitchen at the Elder's House in Porre in 600 AD, then travel to the same house in 1000 AD. The Mayor of Porre will no longer be greedy and will give you a high-powered item.

• Grants a random item including: Prism Specs, Swallow, Slasher 2, Shiva Edge, Rainbow, Wondershot, Crisis Arm, Haste Helm, Prism Helm, Vigil Hat, Prism Dress, Taban Suit, Moon Armor, Nova Armor.

Only available with the Epoch Fail flag, the Jets of Time allow the grounded Epoch to fly. Visit Dalton in the Snail Stop in 1000 AD to attach the wings and gain access to flight locked locations.