Mantle is a Layer-2 built on Ethereum that was initiated by BitDAO.
Here are some of the steps you can take on its testnet to potentially get a $BIT token airdrop:
Contents
Step #1: Get BIT tokens on Goerli
There are 2 ways to get BIT tokens on the Goerli testnet:
the #faucet channel on the Mantle’s Discord,

and the faucet on the Mantle site

You will receive BIT tokens on the Ethereum mainnet.
Step #2: Complete tasks on Mantle’s Zealy questboard
There are multiple tasks that you can complete on Mantle’s Zealy questboard.

This includes some simple tasks like following their socials, and other on-chain tasks.
Step #3: Bridge funds to the Mantle testnet
Now that you have BIT tokens on Goerli, you can bridge it to Mantle to be used as gas fees.

You will need some Goerli ETH to pay for gas fees on the Goerli network for this bridging transaction.
If you do not have enough Goerli ETH, you can check out my guide here.
Step #4: Get roles on Mantle’s Guild
You can access Mantle’s Guild and get some of the roles for Discord.

However, majority of these roles require you to purchase the BIT token on the Ethereum mainnet, where the gas fees can be extremely high!
Step #5: Mint your own token on DexPad
You can create a token on the Mantle network using DexPad.

Step #6: Swap tokens on MantleSwap
MantleSwap is the first decentralised exchange on the Mantle network, and you can use this to swap tokens,

and add liquidity.

Moreover, ManteSwap has a Zealy questboard that you can join as well.

Conclusion
There are other testnets that you could potentially interact with and qualify for an airdrop, including the likes of:
Are you passionate about personal finance and want to earn some flexible income?