Talk to the girl to receive the UMBRELLA (A).
Use the UMBRELLA on the ladder (B).
Play the HOP.
You receive the WHISTLE.
Use the WHISTLE on the criminals (F).
Talk to the girl to receive the GATE KEY (G).
Use the GATE KEY on the lock (H).
Talk to the guard (I).
Take the RESTAURANT EMBLEM (J).
Place the RESTAURANT EMBLEM on the sign (K); take the WRENCH (L).