Progression/Rescue Update

Multiple features have been added to this update, here is a preview of the changes made:

Rescue objectives

2 levels in the game have been altered and now have a new objective where you have to rescue victims from the forest fire. You have to locate them using the sound indicators and guide them to the helipad before the time runs out.

Progression

Each level now has a star counter measuring how well the level have been succeeded. These stars are then used to unlock different upgrades in the new upgrade menu shown before each level. These upgrades allow you to shoot faster, do more damage or shoot multiple projectiles. These upgrades have replaced the old "Firing Pattern" switching mechanic to allow more customisation and a better synergy between players when the eventual multiplayer update will come out.