This sounds like a very weird bug. Do you happen to have a controller or second keyboard plugged in that might be creating some kind of feedback loop? Can you tell me which browser you're using? I wish I could resolve it for you, but if others report the same kind of issue, maybe we can figure out if there's a particular edge-case situation that is causing this problem.
Viewing post in Trouble With Tetras: FeralBytes jam comments
Interesting. I am lerping the camera movement, specifically using a spherical lerp. I tend to mostly test in Firefox so this is interesting. But I run a Linux Machine. Linux Mint and use Firefox. I also do test in Chrome. What operating system are you using? It is really weird that you have this issue in Firefox but not Chrome, I am not sure what to think of that. Thank you for trying it again.