Protect the castle (that is filled with dogs) from the ghosts!... By shooting them!... Use the cursor to aim, and click to shoot! There are four types of ghosts! - Blue Ghosts The basic ones, they're pretty boring. - Red Ghosts They're red... and they go fast, but don't do much damage. - Green Ghosts They appear higher up, they're smaller, and also go faster than blue, but still not as fast as red. - Purple Ghosts They move slow, and take three hits to kill, but do a lot of damage, and drop a lot of money. There are four things in the shop, which you can open with space. 1 - Dog Protector Moves forward every once in a while, killing ghosts. 2 - Faster Bullets Lowers reload time and makes bullets move faster. 3 - Heal Heals your castle. 4 - Boss Damage Makes you do more damage to the boss. The boss appears after 300 seconds, and has a lot of health.