@Mr Don Since you need, I'll be happy to say. Too much red and the level was very easy. The level was linear, so linear, I didn't even know where the win was until I got towards the end. B had one way to go and avoid a zapper or two but that was it. I believe I seen a lift along the way that B couldn't get to so just ignored it. I did wonder if B was going to get zapped by the stationary zapper and stairs just before the ending - B didn't.
Agree on all of @Meko Guy `s points. When B has only one move to make next, it's easy to keep eye-spy on the ZapRs and move when the openings become available. Not sure if you expected that stationary zapper to get B near the stairs at the end. B`s eye is what triggers them, so as long as there is at least 1 block space between B`s eye and the zapper, he can pass by safely.