Block Out (USA) (Proto)

Block Out (USA) (Proto) NES is a unique spatial puzzle game, often described as "3D Tetris". Unlike traditional Tetris which is two-dimensional, Block Out places the player in a deep three-dimensional well. The objective of the game is to arrange three-dimensional blocks (referred to as "blockoids" or "polycubes") falling from above to form complete, gap-free layers at any depth within the well. When a layer is completed, it disappears, granting the player more space to continue.

Players can control the falling blocks by rotating them along three different axes (X, Y, Z), moving them left, right, forward, backward, and dropping them to the bottom of the well. The complexity of rotating an object in three-dimensional space is the primary challenge of Block Out, requiring players to have good spatial visualization skills. The blocks come in various shapes, ranging from simple Tetris-like pieces to more intricate multi-branched shapes.

The prototype (Proto) version of Block Out for NES might feature specific characteristics or be incomplete compared to official releases on other platforms. The speed at which blocks fall typically increases with each level, and the game continues until blocks stack up to the top of the well, leaving no more room to place additional pieces. Block Out tests both players' quick thinking and their geometric spatial abilities.