While the official modern version has ads between runs (unless you pay), version 1.7.3 had a very primitive ad structure. Often, there were no video ads at all—only static banner ads. Many players seek this version specifically to enjoy uninterrupted gameplay.
For millennials and Gen Z adults, this version represents their childhood. They played it on an iPod Touch 4 or a Samsung Galaxy S2. Finding a working version of 1.7.3 is like finding a time capsule.
: These were refined to offer better rewards, including a rare chance for a 300,000-coin jackpot. Mission System