This achievement will unlock once you get Gold Medals in all of the following :
Normal Time Attack
Hard Time Attack
*Please note* You do not need to do any of the character specific Trials in order to obtain this achievement.
Here are some general things to know:
1. Completing a challenge in gold, means having one or more characters obtaining a gold standing in that challenge (Only one is needed though for the achievement).
2. The same character DOES NOT have to be used through out all of the challenges (So if you get a Gold with Ryu, it does not mean all your Golds have to be with Ryu).
3. When doing the Hard survival challenges, the minimum requirement for Gold (In all of them) is 40 Wins. You are free to continue on afterward, but 40 is the minimum.
4. For almost every trial (Minus Normal Survival Trail #19), Zangief is by far the easiest to use. If you want to check out my guide on using him (Without needed to be a pro), then click on this link - 'Giefing it up (A guide for using Zangief for achievements)
5. For Normal Survival Trail #19, using Akuma is preferred because of his standing fierce kick (While at a sweeping distance) is an easy 2 hits and locks the CPU in the corner.