Upgrade Part Recipe
6 White Wool, 2 Coal Blocks, 1 Redstone Block
Battle Bus Recipe #2
2 Coal Blocks, 1 Iron Block, 1 Redstone Torch, 2 Iron Ingots, and 3 Lapis Lazuli
Upgraded Battle Bus Recipe
1 Basic Battle Bus, 1 Upgrade Part
Battle Bus Recipe #1
2 Coal Blocks, 1 Iron Block, 1 Redstone Torch, 2 Iron Ingots, and 3 Blue Wool