Private Paldo is a barbarian found in the Barbarian Assault lobby. Private Paldo will tell players hints and tips if they have made it past wave 10.
After the Barbarian Assault rework, he mentions a barbarian named "Primalmoose" who got through the waves of penance so quickly they decided to create a hard mode and test adventurers' skills against the Penance King. This is a reference to the player "PrimalMoose," who made a successful pitch at RuneFest 2013 to update Barbarian Assault.
This information has been compiled as part of the update history project. Some updates may not be included - see here for how to help out!