Dashing is a game mechanic in Micro Platformer that allows for the player to overcome horizontal obstacles or hazards that cannot be faced through jumping alone. By default, on PC, the player can jump by pressing either Space or C.
Although the player can dash in any room, the game teaches the player how to dash in Room 11 of 
Tutorial. Furthermore, in Room 13, the game tells the player that the number of jumps and dashes (which is 1 for each by default) are restored either by touching a wall or the floor.
Pink crystals
Pink crystals allow for the player to dash again from where a pink crystal is positioned. After a pink crystal is touched, a new one will spawn back in the same position either around 2-3 seconds later after being obtained or at the very moment the player character dies.
Although the player can dash in any room, the game teaches the player a few dashing-related mechanics and features in certain rooms of the Tutorial.