nmbc-movtech

When running at max speed attempting to turn around slows Jack down for several frames like so:
This example assumes Jack is running to the right and then is turning towards the left.

F1> 	156672
F2>	149504
F3>	142336
F4>	135168
F5>	128000
F6>	120832
F7>	113664
F8>	106496
F9>	99328
F10>	92160
F11>	84992
F12>	77824
F13>	70656
F14>	63488
F15>	56320
F16>	49152
F17>	41984
F18>	34816
F19>	27648
F20>	20480
F21>	13312
F22>	6144
F23>	-1024 (turn around)
F24>	-8192
F25>	-15360
F26>	-22528
F27>	-29696
F28>	-36864
F29>	-44032
F30>	-51200
F31>	-58368
F32>	-65536
F33>	-73728
F34>	-81920
F35>	-90112
F36>	-98304
F37>	-106496
F38>	-114688
F39>	-122880
F40>	-131072
F41>	-139264
F42>	-147456
F43>	-155648
F44>	-163840 (max speed)

* By jumping to turn around you save quite a bit of time. Again, this is assuming right to left movement.

F1> 	163840 (Hold left and hit jump for this one frame)
F2>	147456
F3>	131072	(sprite turn around, still moving to the right)
F4>	114688
F5>	98304
F6>	81920
F7>	65536
F8>	49152
F9>	0	(land and jump for this frame and the next two)
F10>	-16384	(Jump)
F11>	-32768	(Jump)
F12>	-49152
F13>	-65536
F14>	-81920
F15>	-98304
F16>	-114688
F17>	-131072 (max jump speed)
F18>	-131072
F19>	-131072
F20>	-131072
F21>	-131072
F22>	-139264 (land)
F23>	-147456
F24>	-155648
F25>	-163840 (max running speed)

19 frames are saved in this case, though this doesn’t come up often.