A round is a board of potions and the level's goal. A regular round lasts 60 seconds: finish the goal before time runs out.
Level goals
Goal
What to do
Score
Score as many points as you can
Gathering
Collect potions of the kinds the level asks for.
Tiles
Light the tiles: collect potions on different cells of the board.
Long chains
Make several long chains — no shorter than the level asks.
Blasts
Set off bombs and lightning runes.
Stars
Catch golden stars: run a chain through each one.
Ice
Melt the ice: collect potions next to the frozen ones.
Boiling potions
Save the boiling potions: collect them before they boil away.
Guardians
Defeat the chapter guardian
How time runs
Timer
Time counts down. In the last 10 seconds every score is doubled.
Moves
No clock — you get a number of moves. Take your time: power does not melt on these levels, and the last moves score double.
Hourglass
You start with only 25 seconds, but every potion you collect adds time.
What you meet on the board
Bomb
Left by a chain of 5 or more. Run a chain through the bomb and it blasts everything around
Lightning rune
Left by a chain of 7 or more. It clears its whole row and column
Golden star
Waits 5 s. A chain through it counts double and adds 5 s
World twists
Each world has its own twist, and a new chapter brings a guest twist along.
Twist
What it does
First spells
Drag across matching neighbouring potions — three or more make a chain. Chains build power: the more you have, the more every chain scores.
Double doses
A double dose is two bottles at once: it counts as two in a chain.
Ice
Frozen potions can't join a chain until you collect one next to them.
Six elements
The moon potion joins in: six kinds, shorter chains.
Boiling
Collect a boiling potion in time, or it boils away and your power drops.
Quests
Task: eight potions of one kind. Make it in time for a bonus and power.
More bombs
A bomb from every chain of four or more. Set them off in bursts.
Storm
Less time, and power fades faster.
Thunder runes
Shorter chains now leave a thunder rune too. It clears its whole row and column.
Current
The bottom row is a current: it shifts every few seconds.
Worlds and chapters
A world is 100 levels, in chapters of 10. A chapter's levels are the ingredients of a Great Potion (9), and the last one is the guardian who comes for the finished brew.
A chapter's cauldron: beating the guardian puts an elixir on the world's shelf
The Laboratory
Score
Gathering
Tiles
Long chains
Blasts
Stars
Ice
Boiling potions