A number of fixes largely due to feedback from a player.

Some hardware (seems to have been certain intel GPUs) had significant visual glitches in certain areas that have now been fixed.

Smooths out the blue beams in level 2 and 3.

Fixes the location of the health placement spawned by the big ship in level 2 for loop 2 +
Adjusts some materials.

Game speed no longer increases after loop 4

On loop 5 and onwards the player suffer more damage when hit.