unlocking secret achievements:
pillage the pet: throw your pet at 1337 pixels high.
max combo: reach a 9999 combo in battle arena.
anti-escape: buy and equip the "dark room 137" from the shop and drag your pet or your character to the door.
combo waster: in the battle arena there is a skill move named "???" and it requires 200 combo, use it 7 times and you'll get the achievement.
 "Anti-Idle: The Game"){kind=icon}
 "Amorphous+"){kind=icon}
 "Clockwords: Prelude"){kind=icon}