Hidden Quest

If you're only aiming for the hidden quest, start a round, don't press anything, and die immediately. You'll get a score of 0, and then you can grab the hidden reward by watching an ad to get 1 currency. I confirmed that Mega Offer can be unlocked by collecting 27 currency. The gameplay itself passes the time well, but it's too much of an ad-focused game to get rewards 😑😑