Thanks for the feedback!
1. Heat is something we haven't even taken a preliminary pass at -- it is pretty much a placeholder in the Alpha release.
2. Robot drivability is huge for us. We have a lot of work to do to get things to drive reliably. Most of the issue is caused by uneven friction between the left and right sides of the robot. Drivability is going to be one of our major areas of focus over the next few months.
3. I like the way you think regarding damage/points/time limits. We definitely need a few more options here.
4. We need to think about how to do resizing to keep things realistic. It might make the most sense to have "small", "medium", and "large" options for the premade components, then the ability to create and save your own. Otherwise people will be able to make things unrealistically big or small things. Then again, maybe it's okay if they are unrealistically small/big... Thoughts?