Rygazelle closely resembles its Evolved form, Rydrake, with some differences. It resembles a panther-like creature with metal wings. It is normally a dark shade of blue with silver lightning bolt-like designs covering its body, but it also can be purple with yellow details or pink with white details.
In Origins the SPL ATK (Thunder Dash) causes Rygazelle to move forward, much like the effects of a Lance, but hits ten times with the ATK value decreasing rapidly. As such, it should be used to propel enemies that approach the player or are about to attack, but preferably not for guarding enemies, wrong type matchup or those with a high defense level (the last 4 hits tend to give damage in single digits).
In Spectrobes: Origins, there is a metallic version of Rygazelle that can be obtained in two ways: Either talk to Gorrick after obtaining the Shard on Menahat and link up a Nintendo DS running Spectrobes: Beyond the Portals, or level up a metallic Ryza after entering a code before starting a new file at the start screen. (Up, Down, Left, Right, A - confirmed with a sound).
Rygazelle was one of eight Spectrobes selected by the developers to be put up for download via Nintendo WiFi connection in Spectrobes: Beyond the Portals, selected by director Tetsuro Hosokawa from Jupiter.