dop2000 Sangeeth777
Nice job! I was tempted to give it a try yesterday too. Then I saw your's and that inspired me to add a few enhancements to it...
like explosions, and a HUD. Left click to shoot, right click locks the HUD so it stops following the mouse. I skewed the ground in photoshop, and made the parts for the HUD there too. (I borrowed the explosions from the Space shooter tutorial)
obviously, this is totally fake 3D, so you can't change camera angles like in the GIF above, but it still looks pretty good and would make a fun game. You can rotate the ground layers with the arrow keys, but that messes up the targeting of the bullets...
https://www.rieperts.com/games/forum/HelicopterGunHUD.capx