Kira heckles Ryota
An important event during the real life Btooom! game is the regular dropping from cargo planes of edibles and supplies inside protective briefcases.

Such droppings have happened at least three times[1] and are usually a source of hope, dispute and conflict, because their contents are valuable itens that all participants crave in order to survive and have a measure of confort. On at least two separate occasions[2][3] a dropped briefcase became lure for a deathtrap.

The supply cases seem to have been fairly consistent so far. In each case, they consisted of a single case securely attached to a mushroom-style parachute by a sophisticated device. The briefcases appear to be solid and fairly protective. The contents usually include a few bottles of drinkables (including vodka in an early dropping), varied food itens, some emergency medicine and assorted utility itens such as suntan lotion, body wash,[4] flashlights and rope.

Early on it is hinted that the droppings happen once a day.[5] Masahito Date eventually points out that the droppings happen regularly at noon,[6] which seems to be an accurate statement.[7]

The droppings are usually of at least pair of briefcases at a time (Chapter 6 Page 16 shows at least three parachuted briefcases at the same time). Since they are carried by the wind and dropped with a significant time interval (apparently by design), it is usual for them to reach the island at a considerable distance from each other[8]. There is no guarantee that any or all of the briefcases won't be blown away from the island by the wind.[9]

Notes: There is no official name for this event or items in the manga series.


  1. Including those portrayed in Manga Chapters 6, 32, 38, 55 and 66, as well as Anime episodes 2, 4 and 9
  2. Btooom! manga, chapter 8
  3. Btooom! manga, chapter 40
  4. Btooom! manga, chapter 32, page 24
  5. Btooom! manga, chapter 6, page 14
  6. Btooom! manga, chapter 44, pages 4-5
  7. Btooom! manga, chapter 55
  8. Btooom! manga, chapter 55, page 34
  9. Btooom! manga, chapter 38
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