Tengen's version of Tetris for the NES/Famicom, based on Atari's arcade version. Unlike the Nintendo version, this game supports two players.

The original Tengen's version of Tetris for NES has great mechanics, but is too easy for experienced Tetris players even on the max 17th level. This hack adds two new levels, 18 and 19, as well as the possibility to select any level from 0 to 19.

Tetromino's falling speed for the original 17th and new added levels:

Level 17 – 3 frames per row (normal modes), 5 frames per row (coop modes);
Level 18 – 2.5 frames per row (normal modes), 4 frames per row (coop modes);
Level 19 – 2 frames per row (normal modes), 3 frames per row (coop modes).

To select levels from 10 to 19 either player should hold A and press Start on the level selection screen (just as in the classic Nintendo version of Tetris).

Database match: Tetris (USA) (Tengen) (Unl)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 34113A102CCFFF6A859F8EBB66C24260D43EC7AB
File CRC32: 88F071C3
ROM SHA-1: E675D418256854070F76136602DFC7545F5171AE
ROM CRC32: 343C7BB0