Additions

• Enemies will attempt to shoot down incoming bullets.
• Added a loading screen between rooms and before the level editor.
• There is a small freeze frame effect when a tank is hit.
• Added some new sound effects.

Adjustments

• Mortars take their target's velocity into account when firing.
• Upgrades are selected by holding the fire button for a short period instead of immediately.
• Unused doors will no longer be present in the room.
• Smoke particles don't last quite as long.

Bugfixes

• Removed a click sound that played when the title screen is loaded.
• Testing a room from the level editor will correctly remember the set enemy level.
• Bullets will no longer cause downlikes when breaking on a metal crate.
• Factory noises will no longer continue while the game is paused.