Castlevania appeared in Mushroom Kingdom. Help Mario explore the castle and stop whoever is behind this.

Features:

-mix of Castlevania and Mario

-huge, exploreable world with map

-experience and equipment system, along with magic skills to upgrade

-enemy encyclopedia

-several abilities you need for Mario to reach new areas

-100+ old and new enemies

-great soundtrack

-many secrets

-runs on Windows, Linux and Mac!