Hyper Jump is sold by almost every ability vendor you see (f.e. Code Vendor, Hacker Vendor, Martial Arts Vendor...). As far as I know not at Mara c, but mostly it's there.

If you're looking for Code Fragments, they're sold by rare Fragment Vendors, one of them at the Kedemoth Plaza. You can also compile them from code bits.

If you're looking for red fragments ("Coder Interface" for example), visit www.mxoarchive.radiomegacity.com.