If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Help Botty the robot reach the exit by dragging and dropping pieces on the board. These pieces will allow Botty to rotate, move colored blocks, teleport, etc.
Use the mouse to drag and drop pieces from the right menu to the 3D board. Once you have finished building a path for your robot, click on Start Robot! Your robot will use the path to try to reach the Finish case. If you want to stop your robot and edit the path, click on Modify Map.