Everyone here needs to stop bitching and calm down. There is more to a game then difficulty level, and personally, I think this game is quite good. Simply because you lack the skill or coordination required to use team work, doesn't mean that the GAME is broken. Maybe you should take a look inward.
To scrape a laser or bullet, get as close to it as you can without actually being hit by it. With practice, you can get your multipliers upwards of 200x!
Hatsworth castle is impossible. I have tried it at least 100 times, and I can never get the 1 on top, 2 on bottom that it needs... Fix please? It is the only tower I have left to gold.
 "Idle Weapons Master"){kind=icon}
 "Level Editor"){kind=icon}
 "Diner City"){kind=icon}
 "Elona Shooter"){kind=icon}
 "Cyber Recession Warrior: Edgar"){kind=icon}
 "Champion"){kind=icon}
 "WalkRight"){kind=icon}
 "Hey Wizard: Quest for the Magic Mojo"){kind=icon}
 "Frantic 2"){kind=icon}
 "Momentum Missile Mayhem 4"){kind=icon}
 "Frontier"){kind=icon}
 "Hit The Jackpot 2"){kind=icon}
 "The Endless Zombie Rampage"){kind=icon}
 "Golvellius"){kind=icon}
 "Higher!"){kind=icon}
 "Crush the Castle Players Pack"){kind=icon}
 "Pyro II"){kind=icon}
 "Deep"){kind=icon}