Update 1: Banjo's Rival Fix, Kazooie Completion, Blockhead Completion
Banjo and Kazooie are eachothers' rivals, but they also have a common one with Gruntilda (who isn't finished yet)
Banjo also has a rivalry with Minecraft's Steve [I chose to use the one from the Block Brakers' pack].
Kazooie's slower than default, but easier to handle.
Her default color is Red, and the colors change most of her feathers, as well as the cart.
They are eachothers' rivals, but they also have a common one with Gruntilda (who isn't finished yet)
Kazooie also has a rivalry with Doomguy.
She drives with her talons, since you can't really grab a wheel with wings!
Blockhead (Blockland)
As this one was... done from scratch, it's clearly a lot less quality. But I did what I could with my skill and reference images! It's the default avatar from the (surprisingly still available and playable, although incredibly inactive) MMO, Blockland. The game was probably my first online game ever, so uh. Yeah!
[The game even predates Roblox, if you could believe that. And it was also about building blocks!]
The default color is White- and it recolors the shirt. I was debating making a custom color so I could change more than the shirt, but I'm... not knowledgable on that front.
All of the sounds are directly ripped from the game itself- which... are mostly stock sounds, but yeah.
Their rivals are Minecraft's Steve (the game was occasionally compared to Minecraft when the latter first was in alpha), Doomguy (invading his engine, after all), and Motobug (that one is kind of far-fetched, but many of the creations in the game were 'machines', including some default saved builds.)