Missions in Trial mode are the same for both Sonic and Tails.
- Level C: Complete the level.
- Level B: Complete the Level with 50 Rings.
- Level A: Complete the level in a certain time limit. The time limit varies with each zone.
To do higher level missions you must complete the lower level first. To do mission Level B, you must complete level C. To do mission Level A, you must do mission Level B.