Love the idea of playing the stage safely and then playing it much less safely, would have loved to have seen more of that.
I also love the art style, the second level especially (I didn't make it past that level though unfortunately, holding Ctrl to wall cling was starting to get uncomfortable after 10+ minutes of playing). The background and foreground of the second level really wow'd me when I saw it, well done. :)
If it wasn't for the controls I probably could have played for ages (I was a big Super Meat Boy fan, and I see a lot of it in this). :)
Keep up the great work team!