Square Enix made an iPad version of Chaos Rings and are commemorating its release by discounting other iPhone games. Games like Song Summoner: The Unsung Heroes – Encore, Final Fantasy, Final Fantasy II, Vanguard Storm, and Hills and Rivers Remain are on sale.
Sliding Heroes is an accelerometer powered game where you tilt your iPhone to move units around holes. It normally costs $0.99, but during the sale Sliding Heroes is free.
The Chaos Rings sale ends on August 26.