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Foamstarsis a fun online game that lets you compete against other players. As you learn different character playstyles and see which ones are your favorites, you may want to adjust their stats to give you the advantage in battle; that’s where Bubble Gems come in, providing you with strong boosts.
Whether you want to use your ultimate attack more often or make your character move faster, you’ll find a Bubble Gem to help you. But how do you unlock Bubble Gems, and how do they work? As you learn the system and see which Bubble Gems are best for your characters, you can cover their weaknesses or emphasize their strengths.

What Are Bubble Gems?
Bubble Gems areupgrades to increase your character’s stats. You’ll come across Bubble Gems with letter grades, where E, D, and C are the lowest while B, A, and S are the highest.
Bubble Gems come in different types, which you’ll encounter as you look at the menu on the right side of the Bubble Gem creation screen.

Gain More Ultimate Attack GaugeWhen You Hit Enemies
Lower Skill Cooldowns
Gain More Ultimate Attack Gauge When You Put Foam On The Ground
Unlocking Bubble Gems requires you tofollow a few steps.
How To Gain Energy Stones
You’ll gain Energy Stones in three ways:increasing your Player Level, reaching the last Season Pass tier, or paying for them. For the Player Level, you’ll gain Experience Points by playing matches in Versus and Mission modes.
You’ll get more Experience Points bywinning matches and the length of matches.

You’ll gain25 Energy Stones every five Player Levels.
As for the Season Pass, the main rewards make up the first 40 tiers. Once you unlock them,all future tiers, for the free and premium versions,will give you three Energy Stones.
As for the last one, you cango to the Standard Shop and spend money to get Energy Stones.

How Bubble Gem Sets Work
You cancreate three Bubble Gem Sets per character. Each Set lets you equip three Bubble Gems to it, with the first slot costing one Energy Stone, the second costing two, and the third costing three.
You’ll select the slot andreceive a random Bubble Gem. It will then compare the new Bubble Gem to the old one previously in the slot and let you decide if you should take the new one or keep the old one.
Each time you do this,the corresponding Bubble Gem and grade will be grayed out, meaning you won’t re-roll it. This lets you keep going until you get the Bubble Gem you want.
The bottom-right corner will tell you how many rolls you have until the next one is a guaranteed S-rankBubble Gem. The price also corresponds to the slot, so if you want to re-roll the third slot, you need to spend three Energy Stones.
Youcan’t have the same Bubble Gem type in each slot. This means your Bubble Gem Set can’t have an S-rank Lower Skill Cooldowns Bubble Gem with an A-rank one.
You can do this with your three Bubble Gem Sets andchoose whichever one you want to use before a match starts.
If you make too many Bubble Gems at once, you’ll have towait 15 minutes to make more.