Tetris (NES, Nintendo)

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Nintendo published the first official version of Tetris for Nintendo Entertainment System. Unlike Tet&#1103;is, this game has no 2-player mode.

Details
The Nintendo Entertainment System is specified to run at 60.0988 frames per second.

Rotation system is a right-handed Nintendo Rotation System. Lock delay, wall kick, and hard drop are not present. DAS initial delay is 16 frames, and then every 6 frames. Soft drop speed is 1/2G. ARE is 10 frames; line clear delay is an additional 20 frames.

The following table of gravity speeds was observed and later found to be stored at $898E (offset $099E in the iNES format ROM):

In Marathon (called A-TYPE), when the player line clear (startLevel * 10 + 10) or 100 lines, whatever comes first, the level advances by 1. After this, the level advances by 1 for every 10 lines.


 * Start at level 5, advance to level 6 at 60 lines, advance to level 7 at 70 lines.
 * Start at level 12, advance to level 13 at 100 lines, advance to level 14 at 110 lines.