I think it deserves more credit!
It is a VERY challenging game.. but so well designed that it is still possible. I enjoyed every level and felt the urge to complete it. The only complain I have are that the last two medal are pretty much impossible lol... It is possible, but I died 750 times because some of the levels require such precesion, timing, and accuracy that they require simple trial and error, not pure godly skills.
Fantastic job on designing the levels! I thought that they were very original. I wish the ending could have been a bit cooler and longer. You could have made it very dramatic, where the boss looks at the frog and says, "Come...come with me my friend..." and takes him to this meeting with all the video game characters. Then he would say what he said in the end and the frog would be like WHAT THE F--. ;)