About
Trace a line through falling gems of one colour and lift: they fuse into one heavy gem that slams down where your finger leaves the screen, crushing one layer of rubble for each gem in the chain, up to four. Bring every column down to the green line before any reaches the red one, over 30 levels that add granite, jokers, a nuke, gold, lasers and locks, with five calm bonus stages in between.
Achievements
Sign in to collect themF
First Slam
Win level 1.
R
Rubble Rouser
Win every level from 1 to 10.
G
Gold Rush
Win every level from 1 to 20.
B
Bedrock
Win all 30 levels.
C
Clean Slams
Get 3 stars on 10 levels.
S
Steady Hands
Get 3 stars on 5 different levels in a row.
C
Crystal Clear
Break every crystal in a bonus stage before the time runs out.