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