Do I need to get allow when do I write new nickname?

Null's Brawl
#1

When I delete the game and install nulls brawl
I can’t write emoji like this :jack_o_lantern::christmas_tree::fireworks::sparkler::firecracker::tada::confetti_ball::tanabata_tree::ping_pong::running_shirt_with_sash::mahjong::crossed_swords::umbrella::uk::taiwan::jp::cn:

They didn’t allow it?