• The game runs on Robinhood Chain. All prices and payouts are in $RICH.
• Gas is paid in ETH. Keep a little in your wallet. ETH gets to Robinhood Chain through the Arbitrum bridge from Ethereum, or from an exchange that supports the chain.
• A flip is two confirmations in your wallet: first you allow the game to take exactly the price shown, then you buy. The site never asks for an unlimited allowance.
• Transfers into the game contract carry no token fee. Any fee applies only when you trade on the exchange.
• The contract checks that exactly the current price arrived. Anything else, and the purchase is rolled back.

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