Refresh for each green chest and take appropriate reward:

If Enemy shows up, he takes away:

If Rival shows up, he takes away:

If They both show up, use Rival!

If the Prize is TT4:

Green Chest: tt-0408, 05 gil, 21 EXP

If the Prize is TT5:

Green Chest: tt-0504, 20 gil, 37 EXP

If the Prize is TT6:

Green Chest: tt-0610, 20 gil, 26 EXP

If the Prize is TT7:

Green Chest: tt-0711, 05 gil, 12 EXP

If the Prize is 3 Materia:

Green Chest: red, yellow, yellow, 20 gil, 27 EXP

If the Prize is 1 AB Letter:

Green Chest: letter20, 05 gil, 12 EXP