Slogra

Overview
Gaibon is a spear-wielding enemy resembling a skeletal Pterodactly that appears in Super Castlevania IV, Castlevania: Symphony of the Night, Castlevania: Dawn of Sorrow, Castlevania: Curse of Darkness, and Castlevania: Portrait of Ruin. Its skeleton appears in the background in Castlevania: Harmony of Dissonance. Slogra attacks by approaching the hero, lunging with its spear when it comes near enough. In Super Castlevania IV, it shoots fireballs from its spear when it attacks, and also leaps above the screen every time it takes damage. Upon taking damage, Slogra's spear breaks, and it manually lunges at the hero. In Super Castlevania IV, this was nearly impossible to avoid. Its soul in Dawn of Sorrow allows Soma to throw spears, similar to the Javelin special weapon in Castlevania: Portrait of Ruin. Slogra is always seen paired with Gaibon, perhaps from their initial appearance as two of the final four bosses in Super Castlevania IV.

Super Castlevania IV
In Super Castlevania IV, slogra is the first of the final four bosses. It is known for jumping when hit, and landing where the character is standing. After losing it's trident it will employ it's beak attack. Slogra is said to be one of the hardest bosses in the game. Slogra, Gaibon, and Death bosses

Castlevania: Symphony of the Night
In Symphony of the Night, Slogra is teamed up with Gaibon. They are the first bosses you will encounter, and are considered extremely easy. You Tube Videos: Library Tactics First Encounter, Luck Mode Slogra and Gaibon Main Encounter, Luck Mode Slogra and Gaibon

Castelvania Dawn of Sorrow and Portrait of Ruin
In Castlevania DoS and Castlevania PoR, Slogra returns as a normal enemy. In Dawn of Sorrow, you will find both Slogra and Gaibon enemies in the Mine of Judgment. In Portrait of Ruin, you will find both enemies again in the Clock Tower.