One of the 1st things that you are going to want to do in 2.0 is to transfer your 1.0 figures to 2.0 so that you can repopulate your Hall of Heroes. This is also how you get your green light saber back.
To do this, you will place each DI 1.0 figure onto your base and then select the take ownership option when it appears.
If you accidentally choose the Guest option, here are the steps that you will need to do to get your figure's level status back.
1: Go to the main menu. Game Options->Reset Figure
2: Go back into Classic Disney Infinity (1.0), and select the take ownership option after placing your figure onto your DI base. The level on your figure should return to normal.
3: Go back to Disney Infinity 2.0, and then select the take ownership option after placing your figure into your DI base. Your figure should appear at the same level as it did on 1.0.
Note: If you don't go back to Classic Disney Infinity after resetting your figure to take ownership of your figure as stated in step 2, your figure will still be at level 0 when you retake ownership in 2.0.