Create a subrule of Bouts called Scratch Damage:

When rules state that a Bot takes Scratch Damage, this is interpreted as losing 1 condition percentage point from its frontmost system, or its chassis if it has no frontmost system.

If the text “Whenever an action by a Bot in a Bout causes the Condition of another Bot’s Engine, Chassis or System to be reduced” exists in either a rule called “The Arena” or in the rule “Ending a Bout”, replace it with

“Whenever an action by a Bot in a Bout causes the Condition of another Bot’s Engine, Chassis or System to be reduced by any means other than Scratch Damage”

Replace the effect of Flipper in the rule Systems with:

If the Actor is Flipped, it ceases to be Flipped. Otherwise, the Opponent becomes Flipped and takes Scratch Damage.

For the first instance of the words Scratch Damage in each rule outside of the rule Scratch Damage, add a wiki link to those words to link to the rule Scratch Damage.