I posted this suggestion before in SP subreddit but nobody was interested, so I hope you can give me some support here. So this is my idea, how about adding a cheat mode (or any name you like) into the game (can be toggled from the main menu)? Here are some examples :
- Indestructible Aircraft : Turns your plane into a Nokia 3310.
- Noclip : Everything except the runway and water is affected.
- Gravity : Adjustable from 0.1x to 5.0x.
- Space Mode : Absolutely no gravity, anything moves will never stop unless you have reverse thrust. Inspired by SimpleRockets.
- Style Filter : Change the way the game looks (may or may not cause lags). Such as Monochrome, Motion Blur, Sepia, Invert colors and more.

If you have any more suggestions feel free to reply. Thanks! :)