Added Boss Critter in Survival mode who visits every 5 waves
Added New Survival mode where Critters come from multiple directions and base is centralised
Added wall mechanic where you could fortify the defences surrounding your base
Added community aspect featuring several high score tables and challenges for the player
Fixed issue where some speech was being triggered and not required
Fixed overlap issue with some objects being in-front of others when not required
Fixed difficulty settings for some levels
Improved alignment of some tiles
Improved menu formatting on some forms