-- Use coins dropped by enemies to buy over 40 weapon upgrades. (idatxbox.com)
Coins are spent on upgrading weapons, purchasing new ones, such as the machine gun, grenade launcher, or sniper rifle, as well as earning doubling coin drop rates and other special items. (selectbutton.com)
In case you are wondering why the majority of coins dropped once again although all currencies started with the recovery on last Monday the answer might be hidden in yet non-official statement by the Japanese Financial Services Agency. (globalcoinreport.com)