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-0405, 05 gil, 34 EXP

If the Prize is TT5:

Green Chest: tt-0511, 20 gil, 38 EXP

If the Prize is TT6:

Green Chest: tt-0607, 05 gil, 15 EXP

If the Prize is TT7:

Green Chest: tt-0707, 10 gil, 33 EXP

If the Prize is 3 Materia:

Green Chest: blue, green, blue, 05 gil, 22 EXP

If the Prize is 1 AB Letter:

Green Chest: letter12, 10 gil, 12 EXP