First, great game! You can blast trolls with your ray gun for 150 reputation each! But you can also blast the side of the platform in Level 3 for 150 points too! That's how Jon Skeet gets so much reputation -- he just touches his keyboard and reputation instantly appears.
Here, in level 3, I have 6,120 reputation. The board is cleared of badges, diamonds, and trolls, and I'm about to shoot the platform to the upper left by jumping and firing.
I've hit the side of the platform 2 times and I'm about to hit it again here. My reputation has gone up 300 points to 6,420 points.
I'm guessing that the code to register a hit on a troll doesn't check what it hits - troll or side of platform.
Here's my score 30 seconds later:
You can fire will standing on the ladder, so this is the inevitable result:
Now that this is fixed, I retire as the Unikong King!