Exploring the Quantum Leap Elements
Those four Quantum Leap features are the special wilds, each with a unique job. The Instability Wild places up to four regular wilds randomly on the grid. The Alteration Wild changes every symbol of one type into another, which can suddenly link a huge cluster. The Implosion Wild converts 3 to 6 specific symbols into wilds. The Demolition Wild removes all symbols around it, clearing space for a big new cascade.