Use a synergy ability.

Exploit an enemy's weakness.

Win a battle.

Finish the game

Collect the five flowers

Complete the pub to-do list

Steal the old man's woolen hat

Score a goal

Complete the back gardens to-do list before the church bells ring

Dress up the bust with things from outside the back gardens

Complete the high street to-do list before the church bells ring

Trap the boy in the garage