Great game! I'm not sure if this is a bug or not, but you can dash while diving, jump while dashing on the ground and dive while dashing in the air. After dashing while diving, you still can't move horizontally until your dash ends, and a similar thing happens when you dive while dashing, but you start falling during the dash. The most interesting part is what happens when you jump while dashing on the ground. Usually, it results in a longer jump where you get stopped after the dash ends (kind of like the super in Celeste, if you know that game), but when you jump during coyote time, you start moving upwards at a 45 degree angle until the dash ends (baisically a diagonal dash). In both cases the distance is practically the same as when dashing, but the coyote time diagonal dash thing can be used in the blue section to access a room with an 8 made out of red blocks.