Threan-type Retha, despite being incredibly small, have access to powerful telekinetic powers. Most Threan-types use this power to simply move objects (up to around 50kg) with their minds, or to enhance their telepathy to control the minds of others. By concentrating on the air around them, many Threan-types can also create shields powerful enough to stop low caliber bullets.
The most powerful Threan-types have the ability to lift themselves into the air and fly, while being able to create shields and wipe memories from the minds of many beings at once. These Retha are considered to be pure-blooded Threan-types, whose families have never interbred with other Retha.