Should be compatible with all mobs, but don't expect the mobs with special spawn conditions to work everywhere. Animals require grass, Monsters require darkness, Slimes require being in their special chunks, and 0-16 depth. Requires ModLoader Beta 1.7.3.
They are crafted the same way as normal arrows, but the head is replaced based on the element; gunpowder for explosive, coal for fire, snowball for ice, and egg for, well, egg. Crafting an explosive arrow only gives you one arrow, and it explodes upon impact. Crafting a fire arrow gives you one arrow, that will ignite stuff upon impact. Crafting an ice arrow gives you one arrow, that will freeze water into ice, lava springs into obsidian, put out fire, and break torches. Egg arrows spawn chickens upon impact with the ground, but there's a secret too. Lightning arrows strike lightning where ever they hit, use diamond in recipe. Homing bow recipe is same layout as regular bow, but diamond instead of sticks. Requires ModLoader Beta 1.7.3.
It's a shapeless recipe. Requires ModLoader Beta 1.7.3.
You may also change the texture of platform by putting block in the last slot. Known issues include: placing a block inside of dummy, standing on its head, possible inability for mobs to path around it. Recipe is 3 solid stone blocks along bottom, with 2 sticks in the middle. Requires ModLoader Beta 1.7.3.
[a|b] is a redstone input function for signs, where text replacing 'a' will be shown when the sign is powered, otherwise 'b' is shown. Type [light], and it will show you the current light level of the sign's position. [biome], [temp], [humid] each tell you the biome you're in, the temperature of that area, and the humidity of that area, respectively. [temp], [humid] will no longer function in Nether. [chunk] will tell you where to find the chunk file for this chunk.
Requires ModLoader Beta 1.7.3.
Applying redstone power to this will remove the gate. Use the control block to open the GUI where you can place supporting blocks that will replace how the gate looks. Requires ModLoader Beta 1.7.3.