@Block builder credit for the original idea goes to @Beatz nation in the "level creation help" subforum.
I enjoyed the different flinging mechanisms and the zapper bots look different in this one, I liked that :3 I congratulate you on a job well done :3
Fun and straightforward without relying on any tricks / exploits Reminiscent of @richardfu 's earlier materials.
I did it.. Using only two balls. Or is this too lateral a solution? Spoiler First i nudged Ball One out to block the R army. When they were all meeting out of the way, to discuss the obstacle, I stood B in front of Ball Two and gently pushed him over the edge. Had to fight for him to stay on the grass, 2 levels lower; but then it was just a short walk to freedom... If that's not the intended solution, then please don't change it - puzzles with more than one solution are twice the fun!