游戏类型Metroidvania（类恶魔城银河战士）是什么意思？

Metroidvania is a subgenre of the action-adventure video game genre which borrows heavily from the general gameplay concepts of the Metroid series and the Castlevania series (specifically from Castlevania: Symphony of the Night and onward).

Metroidvania games feature a large interconnected world map the player can explore, but access to parts of the world is limited by doors or other portals that can only be opened after the player has acquired special tools, weapons or abilities within the game. 
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Through this, Metroidvania games include tighter integration of story and level design, careful design of levels and character controls to encourage exploration and experimentation, and a means for the player to become more invested in their player-character. 
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Metroidvania games typically are two-dimensional platformers, but can also include other genre types. Though popularized during the early console generations, the genre has seen a resurgence since the 2000s due to critically praised, independently developed games.