Here is the full list of all 15 Alpha Particle achievements.
Destroy your first Fire ELEMENTS
Destroy 200 Fire ELEMENTS
Destroy 500 Crystal ELEMENTS
Collect all PINKABOMBS
Die 100 times
Accumulate 10 000 BANKED ENERGY
Unlock MICRONS
Fully upgrade MICRONS
Own all PARTICLES
Upgrade your CORE for the first time
Upgrade your CORE to 100 MAX ENERGY
Upgrade your CORE to 150 MAX ENERGY
Upgrade your CORE to 200 MAX ENERGY
Upgrade your CORE to 300 MAX ENERGY
Buy your first item