Here is the full list of all 25 Fastest Hands In The WASD achievements.
Beat wave five hundred in idle mode
Beat wave one hundred in idle mode
Beat wave ten in idle mode
Beat the eleventh boss in showdown mode
Beat the tenth boss in showdown mode
Beat the ninth boss in showdown mode
Beat the eighth boss in showdown mode
Beat the seventh boss in showdown mode
Beat the sixth boss in showdown mode
Beat the fifth boss in showdown mode
Beat the fourth boss in showdown mode
Beat the third boss in showdown mode
Beat the second boss in showdown mode
Beat the first boss in showdown mode
Beat the twelfth boss in showdown mode
Prestige for the first time in idle mode
Prestige for the second time in idle mode
Prestige for the fifth time in idle mode
Prestige for the tenth time in idle mode
Prestige for the twenty-fifth time in idle mode
Prestige for the fiftieth time in idle mode
Prestige for the hundredth time in idle mode
You Found The First Easter Egg!
You Found The Second Easter Egg!
You Found The Final Easter Egg!