Codes:

ENTERCROSSWORLDS
TWENTYAWESOME
CAMPINGEVERMORE
ARCANACAMP
LUCKYDIVER
SUPERTEN
WELCOMETOCW
2WORLDTHLIVE
1CATCH1PENGUICORN1
1CATCH2RAMBUNCTUS1
1CATCH4SPARKEE1
1CATCH3POLARIN1

To redeem on mobile, click on the icon on the top-right corner of the screen (three-row icon), then the gear icon on the middle left of the screen (Game Settings). From here, click on Misc and then choose Enter Coupon Code.

For PC players, the redemption of code goes here: https://couponview.netmarble.com/coupon/enngb/1449

thanks