So lets say, I buy the Humble Bundle with Android 7 (the current one at this moment), but I don't pay above the average, I obviously won't get the extra games.
But can I go back and pay more later to get the extra games if I already made a purchase? E.g. if I now pay $1, but later the average price is $4, will I only need to pay the remaining $3, or would I need to pay the full $4 on top of the $1?
Or will I need to make another purchase?
Also, since now for the second tier it is mandatory to have paid above the average, will I be able to pay more in the second week if I want the second tier games?
All this is because at the moment, I am not interested in the current extra games (Bards Tale, and Worms Reloaded), but if in the second week they add better games, I would like to be able to get them.