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