Penalties for the difference between the levels of the character and mobs (including bosses) work like this:
| Level | Getting EXP/SP | Item Drops | Assignment (spoil) |
| -10 and below | 90% | 90% | 90% |
| -9 | 40% | 40% | 40% |
| -8 | 30% | 30% | 30% |
| -7 | 20% | 20% | 20% |
| -6 | 10% | 10% | 10% |
| 0 | 0% | 0% | 0% |
| 6 | 42% | 10% | 10% |
| 7 | 52% | 20% | 20% |
| 8 | 60% | 30% | 30% |
| 9 | 67% | 40% | 40% |
| 10 | 72% | 90% | 90% |
| 11 | 77% | 90% | 90% |
| 12 | 81% | 90% | 90% |
| 13 | 84% | 90% | 90% |
| 14 | 87% | 90% | 90% |
| 15 and higher | 89% | 90% | 90% |