Minecraft in his performances. A simulation of the game was featured in Lady Gaga's "G.U.Y." music video. The game is also referenced heavily in "Informative Murder Porn", the second episode of the seventeenth season of the animated television series "South Park". "Luca$", the seventeenth episode of the 25th season of the animated sitcom "The Simpsons" was inspired by "Minecraft"; Persson responded by tweeting "I'm not sure how I feel about it." After the release of "Minecraft", some video games were released with various similarities with "Minecraft", and some were called "clones" of the game. Examples include "Ace of Spades", "CastleMiner", "CraftWorld",
Minecraft mods (the Bedrock Edition), in the form of add-ons. Mods have influenced the main "Minecraft" game on three occasions. Mod developer Dr. Zhark added horses to the game through the "Mo' Creatures" mod. Later on he helped Mojang adapt horses for use in standard issue "Minecraft". Pistons were also originally a part of a mod too, but impressed "Minecraft"s creators so much that they added the feature to the main game. Mojang also admitted that they admired all of the work done on server side modding API Bukkit. In 2012, the Swedish company ended up hiring the lead developers of the