Is this bug?

[Starbrockle]

@QuackQuack

In the Over The Rainbow wave, if I kill all the chickens too fast, the Alien Container won’t appear or disappear too early, so I can’t destroy it and get the satelites. I need to leave some chickens survive to wait for the Alien Container’s appearance and that’s annoying.

@InterAction_studios

“Over the Rainbow” wave: Safebox (alien container) appears faster (@Starbrockle Idea)

You’re welcome.

@QuackQuack

In the Shooting Range wave (I guess), the laser barriers don’t appear at first, they were fade before fully exposed. If I accidentally got through it early, I can’t comeback later and I find difficulties clearing the wave after that. Can someone please provide me a screenshot for illustrating purpose?

That’s why there is a safe zone.