Aw, man . This is very @LooKing? styled. But it was still pretty simple. It didn't take long to solve, although it did require some trial and eror. The design was somewhat cool and mostly symmetrical, and overall it was good. Sneaky, though...
I agree with @Frenzies that it still feels simple, but it is a nice compact design nonetheless, and it's free of tricks . I'd say there's more that could be added to make it a larger level.
I have tested it with newbies friends this weekend and I can assure you that could be tricky to them that was just the point. I did it on purposes
@Gepeto Spoiler Yes, in two different ways: by the stairs (if you go back and forth quickly, B is not killed) and by the tunnel. B still dies when going on the red spot anyway