Tetris / Bloxeed (Korean System 16 bootleg) (ISG Selection Master Type 2006)

Bloxeed reuses the random number generator from Tetris (Sega), but adds a few changes. The initial seed is one higher, at 0x2A6D365B. It runs this once, and takes all 32 bits of the result (not the new seed), and stores it to use as the seed for the piece generator. The piece generator doesn't loop. When generating pieces, the result is ANDed with 0x7f instead of 0x3f. Then, if the value before modulus is greater than $6f, a flag is set. If the flag is set, modulo results of 1 and 2 are treated as 0. This converts some S and Z pieces into I pieces. This means you have a 3 in 16 chance of an I, a 9 in 64 chance each of L J T and O, and a 1 in 8 chance for each of s and z.

Use arrow key and try some key ( Shift, Enter, Z, X, A, S , Q, E, R, T, G, F, H ) to controls the game.