|One Block Gap Bypass|
How It Works
When ducking as Super Mario he is able to fit into a one block high gap. Through various methods it is possible to force Mario to make it into the gap.
By duck jumping and performing an air twirl it is possible to get enough momentum to slide into the gap. This is only possible in the New Super Mario Bros. U game style.
By doing a partial wall clip from above while ducking, Mario will gain just enough speed from being ejected from the wall to make it into the gap.
By running and sliding Super Mario is able to fit into the gap.
By holding forward and constantly pressing down, Super Mario or higher is able to swim under a 1 block gap. If Mario is holding an item he can swim underneath spikes without taking damage.