 Basilisk | 200 | 17/128 |
| Basilisk | 132 | 5/128 |
| Basilisk | 11 | 5/128 |
| Basilisk | 440 | 1/128 |
 Basilisk Knight | 500–2,500 | 7/52 |
 Basilisk Sentinel | 500–2,498 | 7/52, 3 rolls |
| Beekeeper (random event) | 30–99 | Always |
 Berry (Awake) | 35 | 29/128 |
| Berry (Awake) | 100 | 10/128 |
| Berry (Awake) | 8 | 7/128 |
| Berry (Awake) | 50 | 6/128 |
| Berry (Awake) | 250 | 1/128 |
 Berserk barbarian spirit | 142 | 10/128 |
| Berserk barbarian spirit | 106 | 5/128 |
| Berserk barbarian spirit | 106 | 2/128 |
| Berserk barbarian spirit | 323 | 1/128 |
 Big frog (Level 24) | 5 | 32/128 |
| Big frog (Level 24) | 15 | 19/128 |
| Black Chest (black) | 1–1,000 | Common |
| Black Chest (brown) | 1–1,000 | Common |
| Black Chest (crimson) | 1–1,000 | Common |
| Black Chest (purple) | 1–1,000 | Common |
| Black Chest (red) | 1–1,000 | Common |
| Black demon (Regular) | 132 | 40/128 |
| Black demon (Regular) | 30 | 7/128 |
| Black demon (Regular) | 44 | 6/128 |
| Black demon (Regular) | 220 | 6/128 |
| Black demon (Regular) | 460 | 1/128 |
| Black demon (Regular) | 3,000 | 1/780.19 |
| Black demon (Wilderness Slayer Cave) | 250 | 7/74 |
| Black demon (Wilderness Slayer Cave) | 3,000 | 1/451.05 |
| Black dragon (Regular) | 196 | 40/128 |
| Black dragon (Regular) | 330 | 10/128 |
| Black dragon (Regular) | 690 | 1/128 |
| Black dragon (Regular) | 3,000 | 1/390.1 |
| Black dragon (Wilderness Slayer Cave) | 500–999 | 40/128 |
| Black dragon (Wilderness Slayer Cave) | 1,000–1,999 | 10/128 |
| Black dragon (Wilderness Slayer Cave) | 690 | 1/128 |
| Black dragon (Wilderness Slayer Cave) | 3,000 | 1/390.1 |
 Black Guard Berserker (Red) | 35 | 45/128 |
| Black Guard Berserker (Red) | 42 | 5/128 |
| Black Guard Berserker (Red) | 46 | 9/128 |
| Black Guard Berserker (Red) | 57 | 3/128 |
| Black Guard (Level 25) | 4 | 20/128 |
| Black Guard (Level 25) | 10 | 15/128 |
| Black Guard (Level 25) | 30 | 2/128 |
| Black Guard (Level 48) | 15 | 45/128 |
| Black Guard (Level 48) | 17 | 5/128 |