Algodoo

it crashed instantly

@syplonite -- Would you like to make the cursor move quicker and stop quicker? If yes, then make the following changes....

1. with the scene paused, right click on the cursor. Then hover your real cursor down to "controller" and you will see the controller panel show up. Change the "controller acceleration" to 500.0

2. Move to "script menu" on the main panel and click on it. In the script menu that shows up look for "velocityDamping" and change the values to: [0.99999, 0.99999, 0.0]

3. Save the modified scene and upload it to Algobox. Your new Algodoo cursor should respond faster than before and it should stop faster than before!

@Xray thanks!