This is a parody, and is not endorsed by Cartoon Network, or the people who make Steven Universe. This is purely for fun.
Cliff Robotnik (Guest)
The second to last panel, makes Steven look like some sort of Megaman Boss.
The cat-hand reminds me of the animated show Bravest Warriors. Shame about the end of the last season, but that's the risk of putting man hours into the first draft of your ideas.