Cool! I’m not sure if I got hit too much, but I lost control of the plane after a little bit. It was a little laggy when I loaded into the level, but it cleared up once I got flying.
If you lost control of the plane it means your engine was disconnected. You can go back into the connections menu to fix that by pressing tab.
I'm also not sure what causes the lag, assuming you're talking about the web version. But from my tests the downloadable versions generally run better.
