Super NES Game Genie codes - Tetris 2

9DBD-3DF4 Select any round (1-player mode only)-at round select meter,
keep pressing 'right' on d-pad
CBC5-4FDC + DDC5-4F0C + DDC5-4F6C Tile speed always at 0
CBC5-4FDC + EEC5-4F0C + DDC5-4F6C Tile speed always at 255
6DB1-346B More time to place the blocks where you want them-even after
they hit the ground (left and right only once on ground)