INSTRUCTIONS: Your goal is to defend your station by destroying enemy ships before they do damage to your base. Your health is a green bar at the bottom of the screen. Use points to upgrade and purchase turrets to defend your base. Shoot speed increases firing rate Damage increases damage dealt by your cannon and active turrets. You have time to upgrade in between levels, but you may upgrade during battle if you wish. CONTROLS: Use mouse pointer to aim Click or use spacebar to fire Press S to open the shop Click on BUY button to purchase upgrades After purchasing a turret, press a key 1-8 on an empty slot to place a turret. TIPS: Focus on upgrading shoot speed first, you'll need to upgrade damage quite a bit before you can one-shot the smaller ships. Turrets also upgrade damage when you upgrade your cannon damage, so focus on upgrading damage once you have turrets. You will need to upgrade in the middle of battle if you want to survive long. Prioritize killing ranged (green) ships because once they shoot, you cannot stop their bullet.