Google Event

The Google event made me nostalgic, so I reinstalled it. It's purely fun and seems to have kept its old charm. But I don't know how I managed to play this as a kid. Even now, I can't even get past level 10 and used up all 5 hearts, so I can't play anymore. I have to clear up to level 15 to get the reward, but since I couldn't even reach level 10, I guess I have to give up on the mission. It's hard even for me, and it's supposed to be a game for kids, but it feels like it's for a wider age range...? Had fun playing.