press the green flag to start. Press the space key to jump press the P key so the spikes will not hurt you so it will pause. At the beginning it will ask you how fast you want the cube to move enter in the number of how fast you want the cube to move you can also use the slider tool under the variable " how fast the cube is moving"
this is only my second project so please don't expect this to be amazing. thanks to my friend dab3784 (who left scratch) on scratch for helping me with some of the code