Magma Shard

Magma Shards are golden shards that are found once the Mountain Roc is defeated. There are five to collect but only four are kept long enough to be used. The first Magma Shard falls out of the Mountain Roc's mouth. The other four are found within the body, before the Magma Orb.

Magma Shards are described as "A piece of a volcano's power" by the first tablet within the Belinsk Ruins. This tablet is located in the same room that contains the first pedestal to put a Shard on.

Within the Roc's body, Ryu Kou will run off with the Magma Orb, the Slap Glove, and one Magma Shard. The player will be left with 4 Magma Shards.

Uses
All of the Magma Shards are used to navigate the Belinsk Ruins. The first Shard that is used will open a wall to reveal a door. The second Shard will make pillars rise from the bottom to allow the player to reach a chest as well as access to the next room. The third Shard will also open a door into the Belinsk Castle, revealing Sveta as well as reveal a new path deeper into the Belinsk Ruins. The fourth Shard will power up gears after the second gate has been opened.

Trivia

 * There is a fifth pedestal in Belinsk Ruins for the fifth Shard. However, it is unknown whether Ryu Kou activates it as it is unusable for the player.