FAB-1EF-4C1 Infinite time in King Cobra mode
3E2-7ED-2AA + 032-7FD-3BD All snakes are shorter
3E3-15D-08F + 013-16D-7F4 Only plain yellow snakes fall
3E3-15D-08F + 023-16D-7F4 Only zig-zag snakes fall
3E3-15D-08F + 033-16D-7F4 Only dark dotted snakes fall
3E3-15D-08F + 043-16D-7F4 Only light dotted snakes fall
3E3-15D-08F + 053-16D-7F4 Only dark striped snakes fall
3E3-15D-08F + 063-16D-7F4 Only light striped snakes fall
3E3-15D-08F + 073-16D-7F4 Only vertically striped snakes fall
3E3-15D-08F + 083-16D-7F4 Only checkered snake snakes fall
3E3-15D-08F + 0A3-16D-7F4 Only skeleton snakes fall
3E3-15D 08F + 0B3-16D-7F4 Only temporarally invisable snakes fall
3E3-15D-08F + 0C3-16D-7F4 Only dark snakes fall
3E3-15D-08F + 0D3-16D-7F4 Only wild snakes fall
3E3-15D-08F + 0E3-16D.-7F4 Only king cobra snakes fall
3E6-DFD-081 + 3E6-E1D-C49 + 306-E2D-19A Collect 1 snake in King 
Cobra mode and finish level
3E5-53B-081 + 015-54B-C47 + 005-55B-F71 Snakes fall very fast
3E5-53B-081 + 005-54B-C47 + 005-55B-F71 Snakes fall extremely fast
3E5-53B-081 + 055-54B-C47 + 005-55B-F71 Snakes fall slower
3E5-53B-081 + 1F5-54B-C47 + 005-55B-F71 Snakes fall very slow
3E5-53B-081 + AF5-54B-C47 + 005-55B-F71 Snakes fall extremely slow