Trader 0xdA9 invested $650,000 in Bitcoin Cats tokens and spent over 300 ETH on bribes to ensure the transaction entered the first block. A total of more than $1.3 million was invested, with over half being used as bribes for validators. The account initially received 650 ETH from "theironmountain.eth", then sent all profits to this address. Within an hour and a half, 0xdA9 sold all other tokens except for $100,000 worth of 1CAT tokens and returned $1.78 million worth of ETH to theironmountain.eth.