I didn't replay the original levels, but went straight to the new ones. The first couple of new levels are too easy. Then B en C require very accurate timing. Level D is overwhelming at first, but not difficult with a bit of trial and error.
It all felt a bit underwhelming compared to the original jam version. I also noticed that you changed some of the commands like "open" and "close" to "opn" and "cls". That does make it faster to enter commands, but it would be nice if you still accepted the old commands. On the whole, I think you made it too easy. I liked having to frantically type in commands in the original. Though, it is nice that the error sound is not as loud.