Use the Epoch to enter Ozzie's Fort. During the last fight with Ozzie, don't hit the lever. Instead, make the ice burst, which takes a lot of time. In the triple battle, don't let Flea escape. Note: Defeat Slash first. If you defeat. Ozzie within the ice, you will receive Ozzie's Pants, Slasher II, and Flea Buster.
Go with Robo to the house in the middle of the desert in 600 A.D after defeating Magus once. The woman in the house will ask for help. Make sure Robo is in the second or third slot of your party. Go to the sunken desert (the whirlpool in the desert) and defeat the boss there. This boss is extremely difficult since he drains a lot of HP. Afterwards, accept the aid offer and go to 1000 A.D where you'll now find a monastery inside a large forest. Enter the monastery to find Robo covered in vines. Lucca will repair him and they will have a small party in the forest. A red portal will open for Lucca while everyone else is asleep. It will send her to 990 A.D. where a tragedy happens to her mother. Stop the machine by typing the mother's name. Note: The mothers name is a combination of buttons, "LARA" (Left, A, Right A). The machine will stop, and you can leave. When you get back, someone will notice you and you will return to the monastery. Your reward is the ability to buy magic clothes, including a time hat. From now on you will always see Robo working in various forms during 600 B.C.
The Power Of Greed
Go to 2300 A.D. and go to the middle south island. Head inside the building to fight an eye with five flames surrounding it. One of the flames must be hit ten times, while the other four flames will counter. The flames will switch positions and you will have to search again. After that, you will get a Moonstone. Now go to 65,000,000 B.C. and place the Moonstone in mountain northeast. Then go to 1000 B.C. and you will notice the stone is gone. Go to Porre City and buy a Spiced Jerky for 9,900, then go to 600 A.D. and give the woman the Spiced Jerky for free in the elder's house. Go to 1000 A.D. and talk to the mayor to get the Moonstone back. Go to the island again (Sun Shrine) and replace it, then go to 2300 AD and retrieve it with Lucca. Your reward will be the Wondershot, Lucca's best weapon.
Punishment Of A Treasure
Meet Toma everywhere in 600 AD, then go to 1000 AD and go to Toma's grave. The ghost of Toma appears and tells you a location. A new cave in a mountain will appear at 600 A.D. Go through the mountain to find the tyranno lair. Defeat Rust Tyrannosaur. Note: If you charm him, you will receive Crono's best sword. The Rainbowshell will appear. Talk to the king and inform him about the Rainbowshell so he sends troops. Go back to confirm they are really there. After returning, go to 1000 A.D. Go to the castle, then go to the courtroom to find the king being accused. Go to the treasure room, which is downstairs instead of upstairs, and obtain a shard from the Rainbowshell. Go to court again and show the shard as evidence. The chancellor will try to stop you and then transform into Yakra XIII. After defeating him, go to the treasure room and talk to Melchior to receive a Prismatic Dress (only wearable by a woman) or three Prismatic Helms (suitable for any gender), along with a Rainbow Shard.
Hunt For Your Life
After reviving Crono, go to the prehistoric hunting grounds in 65,000,000 B.C. and fight there frequently until a Nu appears. He is strong, but gives a lot of good items that can be traded for a lot of good things. You'll get lots of petals, horns, fangs and claws, as well as certain speed, strength or magic capsules. After giving ten of each item (excluding capsules) to the elder, you will receive the Ruby Armor (very strong against fire).
The Factory In The South
Go to 2300 A.D. to find a factory. Note: Robo must be in the first slot of the party. This side-quest is annoying due to a difficult puzzle. When you enter, you will have a 5 battles on a conveyor belt. When you are in, go to the upper floor and save. Go through the second floor until you reach another elevator to the first floor. You'll now be able to disable the laser and reverse the conveyor belt in the middle of the room. Go to the small place to charge Robo (sparks will fly from him) and run to another place next to a door. The one just behind the conveyor belt is the hardest one sine you must run a lot and have little time. After completing them all, lure the green robot to the other green robot to short-circuit them. Then, select the two "dolls" and go to the second floor again. Another Robo (in pink) will interfere with you, whom you must fight solo with Robo. She will heal often. Walk further and place the two dolls on the two white spots to open the big door. The mother brain will appear. Note: Don't destroy all three screens or she will have a very strong counter. Destroy one or two since she will heal 1200 each turn from one screen.
Where Cyrus Rests
Go to the year 1000 A.D. and speak with the carpenter and his wife in the bar until you get the Carpenter Tools. Go to 600 A.D. and give the tools to the carpenter to hear about ruins that are in need of renovation. Let them renovate and right and the left door will open . The left door leads to the main part of this sub-quest while the right will lead to some treasures. After all the monsters are defeated, there will be some gaps that are blocking your way. Go to the carpenter and ask him to renovate again, which will cost 1000 gold. Note: They only repair the ruins when every monster in the area is defeated. Your reward will be at the grave, where the Masamune's attack power will be increased to 200.