You will need to have MATIC and WETH in your Polygon wallet.
Step 1: Get MATIC to your MetaMask
Step 2: Get WETH on Polygon
Step 3: Go to minting page at https://pepperattack.com/mint/
Step 4: Select the amount & approve WETH.
Step 5: Get your Peppers.Install MetaMaskAdd Polygon Network to MetaMaskShow WETH on MetamaskUnhide your NFTs on OpenSea