Sound test: Press Up/Right and press Start at the
title screen.
Information in this section was contributed by Kenshin.
Hint: Batarangs: Always collect Batarangs. They kill enemies quickly
from a safe distance.
Hint: Hidden power-ups in level 4-2: Break the rocks to get power-ups such as the small
hearts.
Hint: Defeating Jack and the Joker: Hit Jack and the Joker with Batarangs. Throw the Batarangs
so that they hit Jack or the Joker just as they slow down or stop
moving.
