The technique was originally used by Goku in both the manga and anime to defend against Nappa's Bomber DX. Before using the technique, Goku says he won't dodge it like he did Nappa's previous attacks, then blows away Nappa's attack using his own ki as stated by Vegeta.
Appearances in Video Games
"Cancel Ki Blasts with sheer energy! Works over a wide range."
— Dragon Ball Xenoverse Skill description
Spirit Boost was first named in Dragon Ball Xenoverse as a common Super Skill used by many fighters such as Goku, Vegeta, and Tien. It can also be purchased by the Future Warrior from the Skill Shop in Toki Toki City's Industrial Sector. In Dragon Ball Xenoverse 2, returns as a Super Skill used by certain characters. It can also be obtained by the Future Warrior (Xenoverse 2). In Xenoverse 2, Spirit Boost is noteworthy as one of the few skills that does not require any Ki to use. In the Xenoverse series, it takes the form of an Explosive Wave but besides canceling Ki Blasts it does not cause any damage and usually wears off after two or three seconds.