Players can obtain a Happy Ghast in Minecraft by traveling to the Nether, specifically in the Soul Sand Valley biome, where they can find Dried Ghasts. Dried Ghasts can be extracted using a Pickaxe or crafted with 8 Ghast Tears and 1 Soul Sand. They can also be obtained through trading with some Piglins. To transform a Dried Ghast into a Ghastling, players must submerge it in water for about 20 minutes, ensuring the water is maintained throughout the process. The Ghastling then requires an additional 20 minutes to mature into a Happy Ghast, which can be accelerated by feeding it at least ten Snowballs.
To craft a Harness for the Happy Ghast, players need 3 Leather, 2 Glass, and 1 Wool. The color of the Harness is determined by the Wool used and can be changed with Dye. The Happy Ghast serves as a flying mount for up to four players, allowing for a movement speed of approximately 0.05, making it useful for vertical building.