Complete solution with answer and video walkthrough
I must save that poor frog
Go to the right side and find a valve. Take the valve by tapping on it. Drag the valve at the spout of the frog's capsule.


What are you doing here, human

The alien brought Alyx back to Earth. Then Gundolf told her that the last gem is in the hands of Dracula. She went to the vampires' nightclub

Gundolf Puzzle. Fix my magic scroll

This is Dracula's office. I must look around

Alyx must defeat Dracula's mobs

Gundolf Puzzle. Collect 3 green potions

How dare you infiltrate my dungeon, mortal

What a crazy party! Tidy them up for a photo