The Cloak and Dagger Add-on for LEGO Marvel Super Heroes 2 has 5 achievements.
Complete ''Double Trouble''
Complete the 'Double Trouble' level with all Minikits unlocked
Complete the 'Double Trouble' level after achieving True Believer status
Set both Free Play characters as Mister Negative in the 'Double Trouble' level
Defeat 20 enemies in the 'Double Trouble' level as Dagger