【BACKPACK BATTLE】SHOPの出品率一覧
BACKPACK BATTLEでは、SHOPのレア度がラウンド進行ごとに変わる。
知っておくと、たとえば「Round2でEpicは１％。そのアイテムで上振れを狙えないか考える」「Epicは７~１０ラウンド目に探す」などができる。
| Common | Rare | Epic | Legendary | Godly | coin | |
| R1 | 90% | 10% | 0% | 0% | 0% | 10 |
| R2 | 84% | 15% | 1% | 0% | 0% | 8 |
| R3 | 75% | 20% | 5% | 0% | 0% | 8 |
| R4 | 64% | 25% | 10% | 1% | 0% | 9 |
| R5 | 45% | 35% | 15% | 5% | 0% | 10 |
| R6 | 29% | 40% | 20% | 10% | 1% | 10 |
| R7 | 20% | 35% | 25% | 15% | 5% | 11 |
| R8 | 20% | 30% | 25% | 15% | 10% | 21 |
| R9 | 20% | 28% | 25% | 15% | 12% | 12 |
| R10 | 20% | 25% | 25% | 15% | 15% | 12 |
| R11 | 20% | 23% | 23% | 17% | 17% | 13 |
| R12 | 20% | 20% | 20% | 20% | 20% | 13 |
| R13 | 20% | 20% | 20% | 20% | 20% | 14 |
| R14 | 20% | 20% | 20% | 20% | 20% | 14 |
| R15 | 20% | 20% | 20% | 20% | 20% | 15 |
| R16 | 20% | 20% | 20% | 20% | 20% | 15 |
| R17 | 20% | 20% | 20% | 20% | 20% | 15 |
| R18 | 20% | 20% | 20% | 20% | 20% | 15 |