So when you register your bot you dont have to buy your own weekend pass. And the fighting is a two day thing right. Like you have to fight both days right?
Correct, if you register before August 21 you don't have to pay for your pass.
Also correct that there will be fights on both days. If you're eliminated on day 1 you might not have to fight on day 2, but there will still be grudge matches and rumbles etc.