Tien holds out both palms, one behind the other. He then charges up and fires a beam similar in appearance to a large Dodon Ray.
During his match against Goku in the 23rd World Martial Arts Tournament, Tien and his clones lined up on the four corners of the ring and fired the Ki Blast Cannon at Goku, creating a large explosion in the center of the ring. Goku dodged this by jumping into the clouds but the four Tiens found him and zapped him with their eye lasers. When Goku got back up, the Tiens tried this combination again, but this time Goku countered with the Solar Flare, the same technique used by Tien against Goku in their last match.
In the Cell Games, Tien uses the attack in combination with Piccolo's Masenko, Krillin's, and Yamcha's Kamehameha waves in an attempt to help Super Saiyan 2 Gohan to win his beam struggle against Super Perfect Cell's Solar Kamehameha.
Appearances in games
Ki Blast Cannon was named in the Budokai series and is one of Tien's attacks. However, it is fired in the same fashion as the Tri-Beam. In Dragon Ball Z: Burst Limit, Tien can not use the Ki Blast Cannon in battle, but in the level Nappa... the Invincible?, he uses it as a last resort to defeat Nappa (though not seen) rather than the Spirit Tri-Beam.
- Ki Blast Cannon is also a name used for the clear energy shockwave technique fired from the palm.
- Ki Blast Cannon also is an alternate name for the Tri-Beam.