This tip was founded by BloodShot9001 (Luke Hoffman) you can see his profile here.
Using this trick on Thrashball some amazing scores could be obtained, because you will not use up so many lives trying to beat the bosses on the boss waves.
The scoreboard should reset at the beginning of each new wave. If you have to retry the wave then you cannot do this trick. As the score board will be down and stay there :( SO DO NOT MISS THE ENEMY WHEN DROPPING THE SCOREBOARD!
Make sure you know exactly what is going on and you dont get killed. Wasted lives in horde are bad :( we want this community on gowportal.com to be some of the best horde players!
Watch the video below to see this trick in action! This was just a test on casual solo play..