Monster-in-a-box in ARR

[Duuude007]

I'd love to see this concept implemented in ARR (inside of dungeons, caves etc.). This page sums it up pretty nicely:

http://finalfantasy.wikia.com/wiki/Monster-in-a-box

It really added to my experience while playing other Final Fantasy games; currently, you can mindlessly open a chest. I think it would be nice to have (random) monster encounters. Discuss!

Dont forget it doesnt necessarily have to be a monster "in" a box... sometimes the box IS the monster.

See:
Mimic_(Enemy)

generally speaking, if/when a mimic is defeated, the resulting treasure tends to be above average quality for a chest.

There have been multiple types of mimics in previous titles, like: