When you remix, ir is critical to all or most platformers that your sprite's costume be absolutely centered. -In costume editor, change to vector mode; -Zoom all the way in -Select the costume; you should see a dot and a cross - Drag the costume until the dot is exactly on the X Also you can get stuck if you change the shape or size of the costume when standing next to a wall
Fixed a bug in original platform. It would frequently stick to walls and couldn't get free. Inside the slope logic (see comments), there was a block that SET xvelocity to 0. I replaced that with SET xvelocity to 0-xvelocity. Also added shrink (S) and Grow (G).
