51FL

Destroy at least 173 Obstacles
Reward: 2 Starting on this floor, you will be unable to use any jellies that may causes Jellyco missiles falling, they will be frozen and will be unable to destroy any obstacles. You can only use Sacred Protection Ring of Fire to help destroying obstacles, so if you don't have any, you'd might be better using treasures that gains XP or revives.

To finish this mission, you really have to show some great skills. Make sure you will take any power jellies that destroy obstacles, especially the Star Bubble Party.