Achievements

There are many achievements in MBScape, and completing them are a requirement for the Completionist Cape (up to Elite) and the Trimmed Completionist Cape (up to Ultimate).

You can find the Achievements in the Quest Tab and by clicking Achievements.

Mr. Ex
Talking to Mr. Ex at Home will give you a Guide Book, where you can see the additional objectives you need to complete in order to aquire the Completionist / Trimmed Completionist Capes.