This is why ShyGuy should be in 'Super Smash Bros Ultimate', as a playable character:

Shy Guy is a fan-favorite, likable character who has so much potential for smash. He has a wide variety of attacks that could be put in play, a good fan-base, and would just make sense. Nintendo, if you read this, please add Shy Guy for Smash.

Shy Guy is also good because he has been in so many other games, Mario Kart, Yoshi's woolly world, and so much more. Polls show that Shy Guy is a fan favorite and normally adding those brings a lot more hype to the game, making it more popular.

Finally, if Nintendo added Shyguy, it would fit well with the game and the colors would work perfectly, since shy guys come in different colors. If you look at other games, Shy Guy is already available this way. Looking at Mario kart, (a game where Shy Guy is played as a lot) it goes to show that it fits well. Shy Guy would also fit very well with Smash, as it feels natural to have a likable character join the already playable characters.

In conclusion, it just makes sense to add Shy Guy. It would be a good character, that could even be powerful, add more Hype to DLC, and make everyone happy with the character set.

Thank you for reading.

-XThunderX72