I have to say, I'm enjoying this app Task they're doing now. This plays out just like it did this year in the UK. Over the next two days, the Big Brother House will be running on battery power. Housemates will be called to the "App Zone" (renamed Power Room) where they'll have the opportunity to use various apps which drain the battery.
Here are some apps they can use:
E-mail: prerecorded messages from home from their loved ones
Gossip: various clips of HMs gossiping about the selected HM, may or may not include Nomination footage
YouTube: five of the top trending videos on YouTube that day will play for the HM's enjoyment
Instant Messaging: a HM gets to chat with a loved one live in the Diary Room for 5 minutes
Voucher: this app prints out a voucher that can be redeemed for immunity from Nominations (arguably drains the entire battery to 0%)
Cash: this app awards $5,000 cash
Games: the HM plays a Match 3-type game against the clock, and depending on his/her score, can win prizes ranging from sweets to a night in the Sanctuary
The only way the housemates can recharge the battery is by throwing their belongings in to the generator. They may sacrifice anything that belongs to them – including the cash prizes won in the house.
If the power in the battery is above a predetermined level at the end of the task, they will pass the task and win a luxury shopping budget for next week. Otherwise, it's staples.