Here's a video with Blueberror being demonstrated in VR chat. As Blue has mentioned, there will be plenty of updates coming his way and as far as I know he's the only one with active star magic that you can play with.
If you want to have him in your arsenal kindly click the link below
Blueberror Avatar- VRChat
Current Features:
gogo loco
expressions as both toggles and as hand gestures
star toy with changeable lighting, size and spin speeds
flying star (actual flying is pc only as it uses head movement to fly but can use gogo loco on quest to pretend you fly)
error's chocolate
three outfit changes and abillity to take off boots, gloves, scarf, pauldrons and body armor
**NEW** flying star seats
Roadmap:
bone props (and possible floating bones?)
toggle to reach into a star portal and get chocolate or spy on error (maybe)
Material swaps to choose between having glows, no glows, or toonlit shader
Star shield
Blueberror belongs to @loverofpiggies