Gakuma

Gakuma appeared in 1996 TV series called Ultraman Tiga. Gakuma (ガクマ) were Kaiju that appeared in the series Ultraman Tiga. They appeared in episode 2.

The Gakumas were monsters that have lived underground for years, happily eating rock. However, once their home was disturbed by a construction crew who began to take their rock away, the monsters began to rampage to drive off their invaders. The first was Gakuma Alpha who surfaced and attacked the crew, solidifying everyone and everything in sight with its Stone Beam. GUTS arrived on the scene just as Gakuma Alpha was attacking, and using its new weapon: the DEXUS beam, Gakuma Alpha was destroyed in one shot.

A short time later, Gakuma Beta then surfaced and picked up where its younger brother had left off, solidifying anything it saw, until it turned its attention to GUTS. Daigo was able to turn into Ultraman Tiga just in time and the two battled. Gakuma Beta's extra array of weapons proved too much for Tiga to handle, and the Ultra was quickly put in a fix when the Gakuma fired its stone beam at the Ultra, slowly solidifying him. Fortunately, the rock coating was destroyed once Tiga transformed into Power Type. The tide of battle turned in Tiga's favor, and he attacked Gakuma Beta until the monster was destroyed by Tiga's Delacium Light Stream.

Alpha

 * Stone Beam: Gakumas can fire a blue ray from their mouth, whatever is hit by the ray is coated in stone.
 * Burrowing: Gakumas can burrow at moderate speeds.

Beta

 * Stone Beam: Gakumas can fire a blue ray from their mouth, whatever is hit by the ray is coated in stone.
 * Burrowing: Gakumas can burrow at moderate speeds.
 * Electric Pulse: Gakuma Beta can release an electric shock from around its body when an opponent is grabbing with it. Gakuma Beta can also fire purple electric bolts from his back.
 * Claw Extend: Gakuma Beta's front claws can extend into sharp objects to be used as weapons.