To go on a different topic. I got myself a VERY pleasant surprise when I was playing World of Light. I am a very big fan of F-Zero (its one of my favorite gaming franchises), and Pico is my favorite character from the series. Unfortunately, since F-Zero is a dead series (it now has been dead for as many years as it was alive for, 1990-2004), it was too much to expect the series to gain new content in Ultimate. Although, I was pleased to see Big Blue return though, as well as the new music tracks the series received, as well as the track rips from the SNES game which is still fantastic to this day). Seeing both Port Town and Big Blue in HD for the first time is absolutely incredible.
Anyway, back to World of Light, one of the spirits you fight is Pico. Considering he had a trophy in Brawl and Smash 4, this was not a surprise (his spirit was even known about even prior to the data mine).
However, what definitely had me grinning was you having to use Pico to activate his F-Zero machine, the Wild Goose. Pico had always been one of my pipe dream characters for Smash Bros. (the others are Crono, Leaf/Leif, and Mike Jones), so him to even have a role such as this, which easily could have gone to Black Shadow, Samurai Goroh, Dr. Stewart, or Jody Summer, is an extremely pleasant surprise. You actually get to control his machine too, which means technically Pico is (kind of) playable in Smash Bros., hahaha.
Seriously, I really appreciated the role he had. Sakurai said he included spirits as a way to make sure at least every Nintendo or gaming character at least had some sort of spotlight, and I am very fortunate that Pico at least got a little more. I was never expecting this, yet this is another example of Ultimate giving me something I never expected to happen.