NES Tetris (Nintendo, 1989, puNES, NTSC + PAL)
1This version of Tetris is one of many conversions of the famous block-stacking game, as well as the best-known (but not the only) version on Nintendo's first home console. The goal is to place pieces made up of four tiles in a ten-by-twenty well, organizing them into complete rows, which disappear. As rows are cleared, the pace of the game increases, and the game ends if the stack reaches the top of the well.
The game offers two different modes of play, "Type A" and "Type B". "Type A" is a standard endless mode, where the speed of the game increases every ten lines, with an option for the starting level when beginning the game. "Type B", on the other hand, is a race to clear 25 lines, with options for both drop speed and starting garbage. In both modes, successful play is rewarded with cute animations. There are also three different background songs to choose from.
Differences in the PAL release
The PAL NES is specified to run at 50.0070 frames per second. Rather than play as a slower version of the NTSC original, the game was rebalanced with a modified set of frame timings for its PAL release.
DAS initial delay is 12 frames, and then every 4 frames through subtraction from the DAS counter. The behavior of ARE and line clear appear to be unchanged. The modified gravity table attempts to follow the same progression, but lack of resolution causes some significant changes in the speed of later levels; given that Levels 08 onward are each 1 frame faster than the original NTSC speedcurve, the game reaches speeds of 1G at Level 19 rather than Level 29.
Although the improved DAS facilitates play at 1G speeds without rapid tapping to some extent, prolonged survival remains dubious; play is still restricted to the bottom rows of the playfield, and the high gravity coupled with a faster (and therefore harder to "skillstop") DAS make it incredibly difficult to maintain a clean stack. On March 8, 2021, EricICX became the first person to maxout the PAL version with a score of 1,096,300 points.
https://tetris.wiki/Tetris_(NES,_Nintendo)
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