You cant beat this

Great game loved it

No lag here, but as already said before, the collider on the helicopter is a bit too big, i'm guessing it's just a square?
If you would smoothen the controls and make the colider follow the helicopters shape this game would be a 4/5 to me, now it's in between 2/5 and 3/5 to me. ;)

Not bad for your first game, I had some fun playing the game. I didn't experience any of the lag the other players commented about, but one thing you could improve is the way the helicopter moves; it's a bit rusty, and somethings causes me to crash into a wall even through my helicopter is not touching the obstacle. I gave the game a 3 out of 5, keep working on it, and let me know if you change anything.

Thanks for including that profiler in the right-click menu. It seems to take a full minute for what I'm guessing is the level data and graphics to be unloaded; the game is loading duplicates of these files every time someone resets, making an 8-10 MB strain on the memory per reset. The game itself wasn't quite as fun as other helicopter-cave-edge-dodging games I've seen, but I'd be pretty proud of myself if I made something such as that myself. I beat level 2 on easy, whoo. Decent challenge!

Good first try I suppose, but it causes 2 of my cpu cores to run at about 50 percent for the beginning of every level. If I'm playing a level over and over again, it makes my fans go crazy as if they're on a roller coaster. Decent first try I guess. The helicopter hitbox is ridiculously large compared to the sprite. My word of advice is that you need to solve issues with mouse input lag and the issue I described earlier. Keep on designing!