Meseta

Meseta is the in-game currency of PSO:BB. It is dropped from nearly every enemy and box in the game, and is often given as the reward of quests.

Meseta is used to buy weapons, supplies and armor from the in-game shops as well as to pay for Tekking services to identify weapons. Additionally it can be traded between players for goods and services. Lastly, it can be given to Coren, the wandering Tekker, to gamble for items. There's probably some other uses too.