Once you have the Time Device, there is no reason to go back to the "bad" future. When you have returned all of the items to their proper times, the entire dial of the time device will be green, and the Lab button (12 o'clock) will flash. Click the Lab and you will travel back to Pendulum's Lab. Power up the Future Machine and use it to travel to the future, which is now repaired and futuristic.
Take the monorail and the elevator to your Future Home, and your Future Self will give you the Island Medallion. Then use the Lab button again to return to Main Street.
you find your self in the future(seconed time)
Complete all the challenges on Time Tangled Island. Complete all the challenges on Time Tangled Island.
In Time Tangled island, go to Pendulum's Lab. Inside he will tell you what to do. To turn on the machine, go to the bottom of the lab and push the plug.
On your first visit using the future machine, you get the time device from your future self, so that you can restore the items that are tangled in time. When you finish and get the Island Medallion, you still have the device. Set it to "Lab" and go back to Professor Pendulum's lab.
Use the Lab setting on the time device, just as you did to get to the restored future.
When you return an item on Time Tangled Island, the time device shows "green" for that time (there may still be objects to come from there). When all times are green, travel to the Lab (12 o'clock. the present). Use the Future Machine to travel to the restored future and get you Island Medallion.
After the Future Machine's plug is pushed in, you click to enter it and travel to the future.
Go to Pendulum's Lab on Main Street on Time Tangled Island. They will send you to the future to discover your challenge. Plug in the big plug below the machine to start the quest.
The quest "Save the Future" was released as "Time Tangled Island". (see the related question)
You go into the future and talk the the future you, and she/he will give you the medal.
you go back to the LAB to go to the future.
You follow the lady into the building, talk to the man and the lady. Then keep going down and push the thingy in, jump on it to get back up. Then see the future . find all the missing items and that's how you save the future. SEE: How do you beat time tangled island