It's a merge game

What are the advantages of this game?

Hieek! A quest that gives 10,000 gems, that's totally awesome! Woohoo! I hope you can enjoy this merge game even more than the last one! >_< You'll be able to hit level 10 in no time if you're a Silver Milky Way, fighting! :D:D

I thought there was no hidden bonus because I didn't get one last time, but they're giving out a lot more rewards than I expected;