To win in the Giga Match Fruits slot, you need to land a cluster of at least 5 symbols on a 7x7 grid. The only exception to the rule is the Scatter diamond, an icon that pays even when showing up 3 times anywhere in view. Each win you trigger will activate the cascading mechanic, which may lead to subsequent wins on the same spin.
Symbols work as follows:
Diamond is the Scatter symbol and pays x50, x30, x20, x12, and x8 for 7, 6, 5, 4 and 3 in view, respectively
Apple pays up to x150
Watermelon pays up to x100
Orange pays up to x60
Lemon pays up to x40
Grapes pay up to x30
Cherry pays up to x25
Kiwi pays up to x20