I like the animation work and sound, it really gamifies the experience. I question the usefulness though. But it could make a fun game experience if it were to let people match by colour or align emojis related to each other.
I made a similar tool that in my opinion is more useful for finding characters. I feel that the tool the OP posted seems cool for short periods of entertainment, but isn't very useful for utility. Link to the website here: https://unicode-atlas.vercel.app