This is the mod used in the mindcrack ultra hardcore series. The developers are SBK_x_SiiLeNcE and Me.
This mod makes minecraft more difficult by disabling healing from full hunger, making ghasts drop gold ingots, and making the only methods of healing potions / golden apples. It also changes recipes for the golden apple and glistering melon as shown below:
How to install:
First delete the META-INF folder in your minecraft.jar.
Next just simply drag the Client class files into your minecraft.jar.
Drag the Server class files into the minecraft_server.jar
Do Not Delete the META-INF folder in the minecraft_server.jar
Client and Server Download
Bukkit Plugin by Ghowden
Why I made a new thread for this: