Chain Reaction is the fourth challenge in Challenge mode. It becomes available by completing the first puzzle of Coal Mine.
The puzzles of Chain Reaction involve making chains (consecutive matches of gems). From the fourth puzzle onwards, these also must be completed within given time limits. Doom Gems appear during the Eclipse puzzle (with their number set at 1), preventing the player from being able to make invalid moves without ending their game.
Completing the first puzzle of Chain Reaction unlocks Gem Fall, the next challenge in Challenge mode.
Puzzles
Name
Description
Chain Reaction 1
Create 15 matches in a row (x15 chain)
Chain Reaction 2
Create a x25 chain
Chain Reaction 3
Create a x40 chain
Chain Reaction 4
Create a x50 chain in 5 minutes
Chain Reaction 5
Create a x65 chain in 5 minutes
Chain Reaction 6
Create a x85 chain in 5 minutes
Chain Reaction 7
Create a x100 chain in 5 minutes
Chain Reaction Eclipse
Make the longest chain possible in 3 minutes
Trivia
An early screenshot of the Challenge-mode menu
According to early screenshots of Bejeweled Twist, Chain Reaction was originally the sixth challenge.
A chain reaction is a series of events so related to each other that each one initiates the next.
The planet that represents Chain Reaction in the PC and Mac versions of Bejeweled Twist resembles the planet Mars.
The Bejeweled Twist README file strangely does not mention the five-minute time limits that Chain Reaction's fourth, fifth, sixth, and seventh puzzle must be completed within.
According to evidence found inside the game files of Bejeweled Twist, the original name of this challenge was Chain Gang.
The last two puzzles of this challenge in the mobile version require only x75 and x90 chains instead of x85 and x100 because the process speed and performance of the mobile version is slower than others.
In the Nintendo DS version, Doom Gems do not spawn in the Eclipse puzzles, allowing the player to continue aiming for a new chain after breaking the previous one.
