Just copy the special symbols directly. In the game, CTRL+C copy, and then enter the game CTRL+V key to paste the game name. Also, if you want to use the characters frequently, you can add them with the manual word-making function of the input method.
The special symbols that can be used in the game are:
⊙●○○①? ◎¤㊣★♀◆◇◣◢◥▲ ▼△▽?◤◥ < P > ▆▇█. / " _ < > `,·。 ≈{}~ ～() _ -『』√ $ @ * & # ※
〨々∞ψ∪∩∈∏の℡ぁ?〃ミ≌?