Arena Tokens are required to complete the following Collections:
- The Arena Collection was introduced on 14 June 2010.
- The Arena through with the Tokens will be obtained was not yet accessible at the time of the introduction of the units; it was opened on 23 June 2010.
- The Xeno Mauler was added to this Collection on or before 27 July 2010.
- Annelid Mass was added on or about 26 August 2010.