Chrono Trigger Nintendo DS Cheats

Alternate endings
Complete the indicated task to view the corresponding alternate ending.
Unlockable: - How to Unlock:
Ending #1 "Beyond Time" - Defeat Lavos after reviving Crono at Death Peak.
Ending #2 "Reunion" - Defeat Lavos while Crono is dead.
Ending #3 "The Dream Project" - Defeat Lavos in the Oceab Palace or immediately upon starting a new game +.
Ending #4 "The successor of Guardia" - Defeat Lavos after saving Leene and Marle, but before visiting the End of Time.
Ending #5 "Good Night" - Defeat Lavos after visiting the End of Time, but before returning to the Middle ages.
Ending #6 "The Legendary Hero" - Defeat Lavos after arriving in the middle ages, but before obtaining the Hero's Badge.
Ending #7 "The Unknown Past" - Defeat Lavos after obtaining the Hero's Badge, but before the Gate key is stolen.
Ending #8 "People of the times" - Defeat Lavos after regaining the gate jey, but before giving the Masamune to Frog.
Ending #9 "The Oath" - Defeat Lavos after giving the Masamune to Frog but before fighting Magus
Ending #10 "Dino age" - Defeat Lavos after facing Magus, but before facing Azala.
Ending #11 "What The Prophet Seeks" - Defeat Lavos after facing Azala, but before Schala opens the sealed door.
Ending #12 "Memory lane" - Defeat Lavos after Schala opens the sealed door, but before restoring the light to the pendant.
Ending #13 "Dream's Epilogue" - Defeat the Dream Devourer beyond Time's Eclipse

New Game +
Defeat Lavos and view any of the endings.

Dimensional Vortex
This new dungeon has three parts to it and can only be unlocked when you've completed the game by defeating Lavos at the end of Black Omen.

Lost Sanctum
The Lost Sanctum is one of the new bonus dungeons added to the DS. In order to unlock this, you must unlock the Black Omen in 12,000 B.C. The Lost Sanctum will appear in 65 Million BC, and 600 AD in certain locations.

Millennium Fair
At the start of the game, in the Millennium Fair, do the following. At the east side from where you hit Marle, but before Gatto, there is a cat. Talk to it and go to where there is a girl (more to the right). She will be grateful. Only talk to the cat once. Never eat the food above the table before Gatto. When you crash Marle, immediately take the pendant and give her. Do not hesitate. When Marle asks you to wait on her before going up see Lucca, wait until she starts talking again. Do not move. These things will reflect some time more, when Chrono gets jailed.

Surprised Lucca
When you start the game, go to the Millennium Fair. Crash with Marle, give her the pendant, and go right up. Wait until she takes the candies, then go up. Then, you will be asked to enter the machine. Do so and talk to Marle. She will go inside and disappear. Instead of going up and taking the pendant, try to go back past Lucca. She will ask you to go after her. Then, enter the machine. Lucca will be surprised, even after asking you to go.

Unlimited Shelters
Go to Guardia Forest in 600 AD. Once inside, take the first right and go to the upper path. While in the small clearing, you'll notice a bush in the upper left. Go next to the bush and it will begin to shake. Press A and a monster will pop out, leaving a Shelter as he runs away. Get the Shelter, and then leave the forest and reenter. Do this until you have as many shelters as you want.

Infinite Strength Capsules
When on the black omen, you will come across a Blubber Hulk (which at first looks like a tornado on the ground). Approach it and have Ayla use Charm which gives you the strength capsule. Run away and go back through the door you came through (with the two Nus) and repeat.

Monster Training - Item Duplication
Once reaching the Arena of Ages, send your monster out to train until it returns back with an item. Once it returns, you will see the monster's status window showing the item it brought back. Without closing this window, press the A button to select the option "Train Monster" then press A button a second time and you will now be on the Consumables item screen. Press the B button once to return back to the original screen. This will duplicate the item that the monster brought back (though you will not see any evidence of this until you look in your own inventory). You can continue to do this to get 99 of that item. This is a great way to stock up on magic, speed, or strength capsules.