Smooshing/Steam Spray obstacle course help (Knobbly Crook)

[Bavolis]

I'm trying to add a steam pipe/smooshing puzzle that will cause the player to have to time their movement or start at the beginning of the obstacle course again. I haven't tried anything like this yet, so I wanted to get advice from the experts on the easiest way to do it. I've included a video (missing animations) to show the basic skeleton of it with no obstacles added yet. Basically, that little paper guy needs to reach the eye, but there will be moving things in his path. Am I best off using regions that are set on and off, timed with "steam spray" animation changes? If so, how would I set that up in "Repeatedly Execute" without the delays impacting the rest of the room script? Or is this a case of me using a hammer on a screw?

Youtube Goal Example

Thanks!

[Bavolis]

Gah - I think the colliding with object check will do what I need. Probably got no answers because the solution was so basic. Onward towards the final stretch!