https://www.speedrun.com/hello_kitty ↑　How do I add a My Melody game here?

https://www.speedrun.com/onegai_my_melody_yume_no_kuni_no_daibouken

https://www.speedrun.com/my_melody_angel_book_denshi_techou_and_enjoy_game

https://www.speedrun.com/my_melody__negai_ga_kanau_fushigi_na_hako

You need to request that in the support hub.

But for me, it seems your 3 games aren't related to "Hello Kitty" at all. Just because your games feature a cat, doesn't mean it's the hello-kitty cat. In the game thumbnails you can clearly see the difference.

"My Melody" is apparently Hello Kitty's bunny best friend: https://en.wikipedia.org/wiki/List_of_Sanrio_characters#My_Melody_(1975)

Not sure if that necessarily makes the My Melody games fit in the Hello Kitty series, but it's not a completely out there request. Anyway, @KAGIC you'll need to select the following in the support hub and then fill out the form beneath. I suggest making as clear as possible the relationship between My Melody & Hello Kitty.