I think it's great that you guys are making some new levels for Jumpman! I LOVED this game back in the day. I think because it was kind of "plain" looking, and didn't have any cool background music playing throughout, that it didn't get the love it deserved. But as far as the old style platforming type games, it was one of the best to play, in my opinion. Mostly because it was somewhat forgiving, and fair....you didn't always have to hit the platform pixel-perfect. If you landed near the edge, Jumpman would just smoothly walk up onto the girder. Great game.
Haven't played it lately, but I'd like to throw out one request/suggestion. Any chance you could hack a version where you could select the starting level? From what I recall, you could choose beginner, which starts on level 1, intermediate which starts on level (9?), or expert which starts on level (20-ish?). I always wanted to just be able to select whichever level I wanted to play (and I hang my head in shame if there was always a way to do this, but I never figured it out!).