|  | Engine Souls #1-6 An Engine Soul is the Engine's soul separated from its body in the form of a small card-like items. When the Engine Soul is placed in a Go-Phone, one can communicate with the Engines. When the Engine Soul is not in use, they are kept in the Engine Soul Holster. | 
|  | Change Soul Much like the Engine Souls, they are card-like items that are primarily used for transformation by the Go-onger. Transformation is activated when set inside the GoPhone. The blue one is for Red, Yellow and Blue. The green one is for Green and Black. | 
|  | Blaster Soul Renn gave the Go-Onger the Blaster Soul to install into the Handle Blaster to perform the finishing attack of the EngineOh G6. | 
|  | Engine Souls #7-9 These are the Engine Souls of Triptor, Jetoras and Jum-bowhale. | 
| Kyuyu Soul It is a special soul chip developed by Renn to aim at an Engine Formation in order to re-energize it. | 
| Tokon Soul It was created by Renn when the Power Souls didn't work to control the Go-Roader GT. The Tokon Soul powers the Go-Roader and controls it effectively. | 
| Power Souls Hiroto and Jum-bowhale developed these during the development stage of Go-Roader GT but they were defective and caused Go-Roader to go on a rampage. | 
