Drag the cube. This isn't yet finished, you must remember that this is a platformer engine.
If you want your Velocity X and Y to function similar to movestep, check out this project: https://scratch.mit.edu/projects/384253002/ This is a modified version of a previous project "Perfect platformer engine" https://scratch.mit.edu/projects/187800973/ This currently doesn't support colliding with other objects so I simply didn't add it.
