The bonus is triggered in the same way, with three symbols appearing anywhere on the reels, not necessarily on the same payline. The Achilles bonus certainly has no vulnerable heels and rewards 15, 20 or 25 free spins for players. RealTime Gaming (RTG) allows Achilles to play anywhere, anytime on mobile devices. Access games from anywhere via internet access. IOS, Windows and Android mobile devices are compatible with RTG slots.