Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Dark souls	Beat all stages without dying once.
End of the road	Beat all 25 stages.
Extra life	Pickup an extra life.
Skulls and skills	Evade the red skull and beat the stage.
Speedy Gonzales	Best any stage in under 10 seconds.
World complete	Forest world completed.
World complete	Cave world completed.
World complete	Arabian world completed.
World complete	Medieval world completed.