Level - Current level. Equipment requires you to be a certain level to use.

Experience - Earned though attacks, missions, drop offs, mission objectives,

Reputation - Points achieved from doing drop offs, pick ups, missions, kills, daily safehouse collection.

Money - In game currency.

R2 - Red Robot Labs' game currency. Can be used for gear, cash and boosts.

Health - Health for attacking and being attacked. When dead use a health pack, pay for hospital, or you can wait for it to go back up.

Energy - Used for doing missions, or for drop offs

Stamina - Used for attacking

Mob - Friend list. Helped with attacks in the past - but not any more. One of the biggest advantages of having a large mob is you are more likely to receive gifts (and send them back). More free energy drinks = faster XP.