CHANGES
+ Bosses start at wave 5;
+ The next two waves after the bosses are non-elemental (normal forest), allowing the player to breathe and prepare for the next elemental environment;
+ Visual and sound effects of spells have been smoothed out, reducing visual and sound pollution when casting multiple spells at once;
+ The 'Flying Machine' enemy has been adjusted (it can no longer be pushed by the player and throws bombs in the player's direction).