Painless 8: Intended. I like well made one-of-everything puzzles as well.
Painless 9: You got the intended solution, but don’t worry Arty the backroute is not a big deal and is an easy fix.
Irritation 1: Yes, I used an inverted fake exit and an invisible entrance on top of it. It was meant to look like the lemmings were in the minecart when it fell off the track and crashed, and now they need to find another one. The basher staircase is not the intended solution. What you were doing at the beginning was on the path to the intended solution. I want to so badly tell you what it is, but all I can do is give you a hint:
Start the first basher that goes across the entire terrain at the bottom of the red ramp that's on the left of the entrance. When the climber goes over the exit, falls, and starts mining have him bash so that his tunnel reaches the top of that same red ramp.
Irritation 2: Intended. As mentioned this level is one of the more popular ones, but some people think it’s super easy and others think it’s actually very tricky.
Irritation 3: Intended. I wasn’t excepting someone to struggle on this one. Your solution and Colorful Arty’s solution are both intended, but there is an extra basher that isn’t necessary so it’s just a matter of removing it.
Irritation 4: Intended! I cheered for you when you figured out one of the intended solutions to this level. There is another one, and both require zero precision and don’t require the We All Fall Down two digger trick. The level was inspired by the intended solution to Dolly Dimple.
Irritation 5: Intended. The solution to this level isn’t as hard to figure out as some others, so I’ll probably move this one to an earlier position.
Irritation 6: Too bad you couldn’t get this one. I’m fixing this one a bit in the next update so maybe the solution will click then.