Disney Infinity 3.0
31 Achievements
14-18h
Great Collection
Complete all Challenges in Marvel Battlegrounds
0.8%
How to unlock the Great Collection achievement in Disney Infinity 3.0 - Definitive Guide
DISCOKING
Go to the Challenges menu and pick them one by one to beat them. Each challenge requires you to beat a certain number of characters ranging from 1-5 but if you only have one character figure and die or lose the challenge, then you can simply restart the challenge. However if you have more character figures and one dies, then you can put a new one on the base and continue the same challenge without restarting. Although that should not be necessary, as it is very easy. If you are close to dying, then collecting green sparks will refill your health meter. Once you have beaten all 28 challenges (which takes about 2.5 hours if you play straight through) then the trophy will pop.
Darth, Grif55
There are 28 challenges to go through, all of the challenges will be unlocked after you complete the story. The challenges will have you fighting various different Marvel characters in a variety of scenarios. The challenges aren't particularly hard; I would go for any Power Discs that spawn on the map, as well as all health and special move sparks. The achievement will unlock upon completion of the final challenge.