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Minimum bet : 0.000001BTC (100 satoshis) -- This is for all users to enter, you can claim through the faucet for this amount!
PRIZE : 0.01BTC
So am I allowed to participate in this promotion, even though I don't fit the requirements, if I do the 100 sats one? Or have I misinterpreted that?
You can. You can choose from 100 satoshi bet, 1mbtc bet 100mbtc bet so you will be eligible for the prize. If you choose to bet 100 satoshi your reward will be 0.01 in the end. You can use the faucet to bet sice the faucet gives 200 satoshi if I remember right