Shadow Hearts (シャドウハーツ Shadōhātsu?) is a series of role-playing video games for the PlayStation 2. The Shadow Hearts series was developed by Sacnoth (renamed Nautilus for the later games in the series) and released by Aruze in Japan and Midway in North America and Europe. However, Shadow Hearts: From the New World was published by XSEED Games in North America and Ghostlight in Europe.
All three Shadow Hearts games are turn-based RPGs. There are two unique elements to the Shadow Hearts games.
For nearly every combat action and for some mini-games, the player is presented with a "Judgment Ring". This is shown as a circular field that has a radar-like line that sweeps through the circle a single time. There are several colored areas on this field. To successfully complete an action, the player must hit a button as the line passes through the area. For direct attacks, there are one or more of these areas, and as long as each area is hit properly, the player can attempt to make multiple attacks within the same turn. For most offensive and some defense spells, there are areas that must be hit before a last larger area to successfully complete the spell. Most other actions have just one single area to be hit. For attacks, offensive and healing spells, there is also a narrow red area at the end of some sections; if this area is hit, then the attack or spell or item benefit is slightly increased; however, it is possible to miss these areas easily and fail the movement.