Pretty cool, fellow "Constructor"! :)
My only issue is that I also got stuck in the last door on the level where there are 4 laser cannons (nice reuse of the bell sprite btw :).
I love Construct and use it for as much as I can! Sorry about the door, we're gonna get someone in there to check it out. Seems too dangerous to be left like that :
Just beat V2, thanks for the fix!