Here is the full list of all 22 Idle Bouncer achievements.
Upgrade Gravity multiplier to x10
Activate at least 10000 meta-energy
Pop 10000 bubbles
Pop 1000 bubbles
Upgrade Amplifier Auto Upgrade to level 10 and Free Amplifier Auto Upgrade to level 10 for any ball
Accumulate 1 Millinillion energy in your storage (10^3003)
Upgrade Density multiplier to x1000000
Upgrade powerful bounce to level 10 for any ball
Upgrade mass powerful bounce to level 10 for any ball
Upgrade Gravity multiplier to x2
Activate at least 1000 meta-energy
Upgrade Maximal Idle Bonus Multiplier to 1 Googol (10^100)
Improve all balls twice to make them cubed
Improve all balls to make them squared
Make 1 million bounces with all balls combined
Accumulate 1 Googol energy in your storage (10^100)
Unlock all 6 balls
Pop 100 bubbles
Activate at least 10 meta-energy
Spend 100 Nonillion energy (10^32)
Accumulate 1 Billion energy in your storage
Make 1000 bounces with all balls combined