Abortion.
I managed to get past that last obstacle only to run in to a brick wall.
The evidently horrible way Construct handles updating the collision mask of canvasses not only slows the game to a jerkfest, but overheated my machine to the point of crashing.
I want to take a screenshot to show how far I got but I’m afraid it’ll catch fire.
I’m pretty disappointed because I thought this was going to be an opportunity to try out an idea I’ve been sitting on for a while. Right now I’m deciding whether I should turn what I’ve done so far into less interesting action game or try to come up with something new.