Slider

Slider (sometimes "Sly") is a 13-year-old skateboarder and he's a robot from Radopolis who builds and fixes skateboards and bikes. He claims that his father had disappeared because Hacker had been hunting him. Slider first appears in "The Borg of the Ring," and helps the cybersquad in several episodes after. It can be said that Jackie and Inez both have a crush on him.

According to the Skwakopeidia on The Quest, Slider lives in his garage, which also serves as his workshop. The Skwakopeidia also mentions that he can build or fix anything.

Jackie
Slider has had very few interactions with Jackie throughout the series. However, In the episode "Team Spirit," he becomes worried in her, remarking that Jackie doesn't like to swim and attempts to help her up after she twists her ankle. The way it is said can either be taken as flirting or just friendly concern. Jackie also finds him "cute" and mentions that he seems to be "the strong, silent type." When Slider won the skate-off against Hacker in "Going Solar," Jackie cheered too long, too loudly, blushing about it.

Matt
Matt and Slider often argue, but usually agree on things like how to stop Hacker. They seem to have made their peace in "Team Spirit" because neither are seen arguing again. They are shown to be good friends in "Going Solar."

Inez
Slider has never mentioned feelings for Inez, but has been heard calling her "Nezzie." Inez doesn't seem to mind, remarking that "he's.....different." Inez has mentioned that he's "cute."