Is Extreme Bus Driver Car Game safe?

This extension adds a 3D bus driving game with timed passenger pickup missions and bus customization.

You drive a bus through city streets, pick up passengers at bus stops, and deliver them to the next stop within a time limit. Successful missions and hidden reward packages provide rewards that let you change bus colors and adjust parts such as suspension, camber, and spoiler. The game uses keyboard controls and the store description says it is free and contains no hidden ads.