Rating LuckyBat of Dragon Jackpot ; Welcome Bonus. Rating LuckyBat of Dragon Jackpot ; Welcome Bonus. Rating Bonus % up to € + 20 Free Spins on Twin Spin for the 2nd Deposit ; No Deposit Bonus. LuckyBat of Dragon Jackpot ; Welcome Bonus. Rating Bonus % up to € + 20 Free Spins on Twin Spin for the 2nd Deposit ; No Deposit Bonus. . Rating Bonus % up to € + 20 Free Spins on Twin Spin for the 2nd Deposit ; No Deposit Bonus. Rating This is a producer that favors progressive jackpot titles such as Golden Eggs of Dragon Jackpot, Lucky Bat of Dragon Jackpot, Treasure Bowl of Dragon Jackpot.