Regular:

• click 7777 golden cookies
• Click a Golden Cookie less than 1 second after it spawns
• Appease the grandmatriarchs at least 5 times
• Ascend 10 times
• Ascend 100 times
• Cast 99 spells
• Cast 999 spells

Seasons:

• Pop a reindeer during an elder frenzy
• Unlock all 20 eggs

Shadow:

• Burst the near-extinct shiny wrinkler
• Harvest a golden sugar lump
• Have 4 golden cookies simultaneously