Hop Protocol Note: ETH, Polygon, Arbitrum, Optimism and xDai have been listed, but there is no Token release information yet. Operation: Cross-chain between Polygon/Arbitrum/Optimism/xDai to save gas fees. In order to obtain greater airdrop opportunities, liquidity can also be added. Website: https://app.hop.exchange/

Arbitrum Description: Arbitrum is a popular Layer 2. One of its investment institutions, Divergence VC, has been conducting operations similar to an ambush airdrop: all wallets deposited 0.11 ETH to Optimism, 0.22-0.25 ETH to Arbitrum, and an exchange of ETH to USDC. Operation: Cross-chain from ETH mainnet to Arbitrum. Need to pay Gas fee. Website: https://bridge.arbitrum.io/

Optimism Explanation: It is a competitor of Arbitrum. Refer to Arbitrum for the description of the ambush airdrop Operation: Cross-chain from ETH mainnet to Optimism. Need to pay Gas fee. Website: https://gateway.optimism.io/

Aurora Note: It is NEAR's ETH layer 2 solution. The $AURORA Token was recently launched, but the details of the airdrop have not been confirmed. Operation: Cross-chain from NEAR or ETH to Aurora From the NEAR cross-chain website: https://aurora.bridgetonear.org/ (low cost) From the ETH cross-chain website: https://aurora.dev/bridge/new (gas fee required) Add Aurora network with one click: https://chainlist.org NEAR wallet creation address: https://wallet.near.org/

Hop Protocol Note: ETH, Polygon, Arbitrum, Optimism and xDai have been listed, but there is no Token release information yet. Operation: Cross-chain between Polygon/Arbitrum/Optimism/xDai to save gas fees. In order to obtain greater airdrop opportunities, liquidity can also be added. Website: https://app.hop.exchange/

Arbitrum Description: Arbitrum is a popular Layer 2. One of its investment institutions, Divergence VC, has been conducting operations similar to an ambush airdrop: all wallets deposited 0.11 ETH to Optimism, 0.22-0.25 ETH to Arbitrum, and an exchange of ETH to USDC. Operation: Cross-chain from ETH mainnet to Arbitrum. Need to pay Gas fee. Website: https://bridge.arbitrum.io/

Optimism Explanation: It is a competitor of Arbitrum. Refer to Arbitrum for the description of the ambush airdrop Operation: Cross-chain from ETH mainnet to Optimism. Need to pay Gas fee. Website: https://gateway.optimism.io/

Aurora Note: It is NEAR's ETH layer 2 solution. The $AURORA Token was recently launched, but the details of the airdrop have not been confirmed. Operation: Cross-chain from NEAR or ETH to Aurora From the NEAR cross-chain website: https://aurora.bridgetonear.org/ (low cost) From the ETH cross-chain website: https://aurora.dev/bridge/new (gas fee required) Add Aurora network with one click: https://chainlist.org NEAR wallet creation address: https://wallet.near.org/