Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
supercell may manage , regulate , control , modify or eliminate virtual items and/or merchandise at any time , with or without notice . 

```
. OPTIONS: ['Jurisdiction' 'Unilateral termination' 'None' 'Limitation of liability'
 'Content removal' 'Unilateral change' 'Arbitration' 'Contract by using'
 'Choice of law'].