REFERENCES:

• Youtube tutorial about unity terrain
  https://www.youtube.com/watch?v=ddy12WHqt-M&t=190s
• Page to hlep fix terrain collisions./
  https://answers.unity.com/questions/1092544/rigidbody-glitches-when-collides-with-object.html
• Script to instantiale a bullet.
  https://pastebin.com/mgN2wuq7
• How to use materials in Unity.
  https://docs.unity3d.com/Manual/Materials.html
• How Wheel Colliders work in Unity
  https://docs.unity3d.com/Manual/class-WheelCollider.html
• Tutorial on how to Instantialte bullets.
  https://www.youtube.com/watch?v=FD9HZB0Jn1w&ab_channel=BracerJack
• How to make the camera follow a player.
  https://answers.unity.com/questions/571702/main-camera-follows-player.html#:~:text=All%20you%20need%20to%20do,%2C%20modified%20by%20the%20%2D1.5.
• Find y position of player.
  https://answers.unity.com/questions/1123438/find-y-position-of-player.html"
• How to move n object a ceertain number of units.
  https://answers.unity.com/questions/583935/moving-an-object-a-specific-amount-of-units.html
• Fix collision bug in Unity.
  https://www.reddit.com/r/Unity3D/comments/1ee65w/having_wonky_collisions_rigidbodies_being_weird/
• Code to restart game.
  https://answers.unity.com/questions/1253831/how-to-restart-the-game-2.html
• How to make an enemy follow the player.
  https://answers.unity.com/questions/1240332/how-do-i-make-an-enemy-chase-the-player-with-a-c-s.html
• how to make projectiles shoot in the direction the camera is facing.
  https://answers.unity.com/questions/953132/make-projectile-shoot-the-direction-im-looking.html
• Creating single file Enigma Virtual Box
  https://www.enigmaprotector.com/en/downloads.html
• Creating Check sum CertUtil -hashfile MARS_GAME.exe MD5.
  https://en.wikipedia.org/wiki/MD5