Original Rotation System

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Original Rotation System.

This rotation system was used in Tetris (IBM PC). Presumably the Electronika 60 version is identical, but this is difficult to test without one of those machines.

It is absolutely identical to Nintendo Rotation System, right handed version, except that the horizontal orientation of the I piece is one block higher.

Games using this rotation system generally have no wall kick, no lock delay, no ARE, and depend on keyboard repeat rate for their DAS.


See also