7FL

7FL is the 7th floor in the Tower of Frozen Waves. This floor is pretty easy as there aren't as many obstacles, so the first mission should be a piece of cake provided you are careful and you don't bump. Also, there are quite a few giant coins scattered around the floor, so that would be helpful for the 3rd mission.

Stage
Once you enter the stage, it becomes quite obvious that there aren't many obstacles and there are plenty of Giant Bear Jellies that are easy to get with accurate jumping.

Don't collide more than once
Reward: 100 For those who really bump a lot, Protection Ring of Fire and its blessed version will help you eliminate obstacles before you are about to hit them. As a safety precaution, you could bring Flaming Red Jellyco and/or Jellyco Cube's Lost Jellyco to help you destroy obstacles.

Collect at least 110 Giant Bear Jellies
Reward: 3 Sure, there are plenty of Giant Bear Jellies, but you'll have to be careful enough to get them all, since you might need that extra jump to get the Giant Bear Jelly for the mission. Glistening Green Leaves would be your best friend at this point, and you should be able to get through this mission without much difficulty. Also, having Flaming Red Jellyco or Jellyco Cube's Lost Jellyco in one of your treasure slots would help to destroy any obstacles that would have a Giant Bear Jelly near them.

Collect at least 3,388 coins
Reward: 3 The purpose here is to get 3,388 coins. Sounds a bit daunting considering the fact that we do not have Rainbow Rush bonus time to help us out, so we have to use Golden Energy Drink, Antique Magic Pot, Mint Choco Cookie's Violin Case or Paprika Punching Bag's Yellow Seeds to help us call out the infamous coin flowers for our mission. Alternatively, since there are 1-2 Giant jellies in the floor, we can use Prosperity Bracelet of Earth since it produces coins while we are in Giant mode. Also, Glistening Green Leaves and Caramel Chocolate Energy Bar is optional, but it will be good since you might need the extra jump to get the coins needed for the mission.