Tom & Jerry Searching

To unlock key A, go to the card castle and check every elevator. Once you have and you are lead to jevil, talk to him. Then go back to seams shop and talk about jevil. Seam will then give you the key part A. Hope this helped. After finding all pieces remember to go to the hammer guy to get it all welded and mixed

Did you find it yet

No, I didn't but thanks for asking DomPlus.

Find 3 pieces of a broken key. Then take them to the hammer guy to get them fixed into the real key. Go into the card castle elevator and go down into the fight