You start with $100 Click arrow to see turrets that you can purchase Hover over them to see the name and price There is a trash can on the bottom right if you accidentally purchase a tower Click the start button to start each wave There are 4 types of enemies Basic enemy: 2 shots to kill and drops $2 Fast enemy: 1 shot to kill and drops $3 Strong enemy: 4 shots to kill and drops $4 Boss: Start spawning after 10 waves 25 shots to kill and drops 15$ The enemies health goes up by one every 5 waves You earn $30 for surviving a wave Turret can not be placed on path or on other turrets You have 25 lives meaning that if over 25 enemies touch the other side its game over