A “two-frame punish?”

C/O or CO means 'current offer'.

This refers to either the current price at which the seller is offering the desired item, or the highest bid thus far from another party interested in purchasing the desired item.

The Japanese trainers indicate IVs using the letter "V" and indicate each stat in the order they appear on the Summary of each Pokemon:

• H = HP
• A = Attack
• B = Defence
• C = Sp. Atk
• D = Sp. Def
• S = Speed

If you have a 3 perfect IV Pokemon with perfect HP, Def, and Sp. Def, you would input something like:

3V HBD

If you are looking for Pokemon with Hidden Abilities be on the look out for these characters: ゆめ or ユメ (yume, lit. dream).

You can find the different natures in Japanese here.

Typically, if the notes end in ほしい　（hoshii, lit. wanted）or ください （kudasai, lit. please), this indicates that text the came before it is something that trainer wants.

If you see です（desu, lit. it is） at the end, it usually means to affirm preceding text.

E.g., "3VADSです, 3VHBCほしい" could indicate that the Japanese trainer is offering:

• a 3 perfect Attack, Sp. Def, and Speed IV (A, D, S) Pokemon

and wants:

• a 3 perfect HP, Def, and Sp. Atk IV (H, B, C) Pokemon