Here is a sample level from my upcoming game Brain It On! that you can play in your web browser.
It'll only take you a minute to try. When you finish the level, please use the thumbs up and thumbs down button to give feedback on the design of this level.
http://orbitalnine.com/playtest/
Thank you!
It's of my type. Very interesting.
You are so good at math and physics!
It will be great if you add some tooltips to buttons, or a simple tutorial at the very beginning.