Collected all lollipop wrappers.

Get 30 headshots.

Kissed Nick 100 times.

Collected all combos.

Registered in world leaderboards for all stages.

Clear Prologue, surpassing Dad's score.

Completed the zombie album.

Rescued All Classmates.

Kill 3,000 zombies.

Harvested all crops in the 1st field with the combine in Stage 3.

Defeated Vikke.

Pick up 1,000 zombie medals.