Egg Bomb
Using egg bombs
You must have a ninjitsu skill of 50 or higher before you can use egg bombs. When you use an egg bomb, a hiding skill check is performed and if it is successful you are hidden no matter what.
Using an egg bomb counts as using the hiding skill and is thus affected by skill delay. Also if you are revealed you cannot use an egg bomb to hide again at once. A period of time equal to the time of the skill delay will have to pass before you can use an egg bomb to hide after you have been revealed.
Crafting egg bombs
When you craft egg bombs you must have one or more eggs and 3 open sacks of flour in your back pack. I believe it is a kind of bug, but if you only have 1 or 2 open sacks of flour in your back pack, then you cannot craft egg bombs.