"War of the Gems" is a remake made by Robson Oliveira using the Ikemen engine. The game uses several sprites that were initially made by Zvitor, but that were edited to have a more 16-bit look, like everything else in the game - you can feel the influence of the SNES in the sounds, effects and speed (or the typical SNES slowness) of the game.
It has a tag gameplay, with a gem system, interactive scenarios and dialogues between specific characters.
Unfortunately the author had a problem and lost some of the most current content, but managed to release an update.
Preview and download: