A block-type transformable toy that represents the shape of an object by way of combining a plurality of blocks, comprising a head portion and a torso portion, wherein: adjacent blocks are urged by an elastic cord member in a direction of mutual contact; transformation is possible between a state of being folded so that the outer shape is compact and a state of being extended so that the shape represents the object, by changing the mutual positional relationships between adjacent blocks, so that different surfaces contact each other against the urging force of the elastic cord member; and the configuration is such that at least two blocks out of the plurality of blocks are in a state in which two surfaces of each are in contact with each other at the same time, whereby rotational movement around the elastic cord member is restricted, characterized in that said at least two blocks are a block of the head portion and a block of the torso portion, and the two surfaces are two lower surfaces (10, 11) of the block of the head portion and two upper surfaces (12, 13) and two front surfaces (15, 16) of the block of the torso portion, wherein in a state of being extended, the two lower surfaces (10, 11) of the block of the head portion are in contact with the two upper surfaces (12, 13) of the block of the torso portion, and in a state of being folded, the two lower surfaces (10, 11) of the block of the head portion are in contact with the two front surfaces (15, 16) of the block of the torso portion. a head portion and a torso portion, wherein: adjacent blocks are urged by an elastic cord member in a direction of mutual contact; transformation is possible between a state of being folded so that the outer shape is compact and a state of being extended so that the shape represents the object, by changing the mutual positional relationships between adjacent blocks, so that different surfaces contact each other against the urging force of the elastic cord member; and the configuration is such that at least two blocks out of the plurality of blocks are in a state in which two surfaces of each are in contact with each other at the same time, whereby rotational movement around the elastic cord member is restricted, characterized in that said at least two blocks are a block of the head portion and a block of the torso portion, and the two surfaces are two lower surfaces (10, 11) of the block of the head portion and two upper surfaces (12, 13) and two front surfaces (15, 16) of the block of the torso portion, wherein in a state of being extended, the two lower surfaces (10, 11) of the block of the head portion are in contact with the two upper surfaces (12, 13) of the block of the torso portion, and in a state of being folded, the two lower surfaces (10, 11) of the block of the head portion are in contact with the two front surfaces (15, 16) of the block of the torso portion. adjacent blocks are urged by an elastic cord member in a direction of mutual contact; transformation is possible between a state of being folded so that the outer shape is compact and a state of being extended so that the shape represents the object, by changing the mutual positional relationships between adjacent blocks, so that different surfaces contact each other against the urging force of the elastic cord member; and the configuration is such that at least two blocks out of the plurality of blocks are in a state in which two surfaces of each are in contact with each other at the same time, whereby rotational movement around the elastic cord member is restricted, characterized in that said at least two blocks are a block of the head portion and a block of the torso portion, and the two surfaces are two lower surfaces (10, 11) of the block of the head portion and two upper surfaces (12, 13) and two front surfaces (15, 16) of the block of the torso portion, wherein in a state of being extended, the two lower surfaces (10, 11) of the block of the head portion are in contact with the two upper surfaces (12, 13) of the block of the torso portion, and in a state of being folded, the two lower surfaces (10, 11) of the block of the head portion are in contact with the two front surfaces (15, 16) of the block of the torso portion.