Backstory Overview
Kade the Shy Guy, simplified to Kade, is a young adventurer born within the Mushroom Kingdom. He worked under the rule of King Bowser for some time, but wasn't the best at it. He was clumsy and got in the way of others by accident, so much so that Bowser ordered him to stay behind after many incidents. It soon led to Kade being booted from the army, thus being on his own. Days later, he entered Toad Town, and the Toads were curious yet cautious. Kade explained the what happened and said he didn't want to be like the other minions anymore, wanting to start anew.
One night, Kade was at the docks to ponder his decision. He gazed at the stars until he noticed something strange: volts of energy were tearing open a hole in the sky, with a burst of yellow light shooting down through it. It splashed into the lake while Kade watched, then dove into the water. He swam to the bottom of the lake and grabbed a bright, golden ring, slipping it onto his right arm before it began to glow. The light surprised him further by launching him out of the lake in quick succession, having him land on his feet as he felt a new energy within.
It wouldn't be long for him to test (and find out) his abilities until he heard explosions nearby; Bowser sent an airstrike on Toad Town after hearing that Kade sided with them. Kade rushed over to Toad Town quickly and took it upon himself to fight back. Something about the ring clicked in his mind, telling him of incredible techniques. With vast amounts of Spin Dash attacks and over-the-top agility, Kade managed to wreck the airships, drive the minions away, and save the Toads from serious harm.
Kade's Abilities
Kade's abilities mainly replicate Sonic the Hedgehog, but not to the full extent. He's able to use the Spin Dash for a hard-hitting, quick strike, rolling into a ball whenever needed. However, even though he can run fast like Sonic, his top speed is roughly 1/6th of Sonic's. Kade makes up for it in his reflexes, able to throw dozens of punches and kicks thanks to the boost (also affected by the speed lowering). He can dodge attacks easily as a result, but can still be caught off-guard at any point.
One of Kade's other abilities he got from the ring is the Super Form; Sonic unlocks it whenever he collects the 7 Chaos Emeralds in his world, being magical gems of an unknown time. While Kade doesn't have these, he's able to use his own Super Form through his emotions. Building up enough rage or determination will give him the form, turning his robe yellow and eyes red, just like Super Sonic. Doing this is more similar to the Fleetway Comics interpretation, however, as Kade will lose his mind and fight whomever he sees in a fit of anger. On the flipside, he's able to keep himself calm if he's powered by a huge amount of energy / magic, but this is a much more rare occurrence.
That being said, Kade isn't trained with weapons, which makes him be vulnerable to them. Melee combat is his only source of fighting since he doesn't prefer weapons, but it costs him by not knowing how to battle against said weapons. In turn, though, he uses wits to try to outsmart the enemies and overpower their weapons. He'll use terrain, nearby objects, or even other enemies by throwing one into another -- all for helping himself win battles.
Removed Abilities
Kade was the most-used character out of all of the characters Kirb used back then. It led to Kade getting the most abilities, forms, and variants, leading him to now be the weakest of his group. Full descriptions of these powers will be in the Retconned Backstory section, but here's a handful with summaries.