Uploaded to the google drive as "bae_vs_time". However, since I misunderstood what you meant by "obstacle" I've got a metal block instead of a dangerous thing. I also got the crash when setting the time limit, but after reading here I was able to recover the save. However, I noticed when playing the other games in the google drive that the game doesn't seem to be able to handle playing more than one without refreshing the page.
It's been a long time since my first jam (and far longer since my first game), so it was interesting to get a simpler experience again. I especially can't remember the last time I've tried designing a level without knowing how high a platformer character can even jump. Like, nowadays I would know basically the exact minimum and maximum parabolas and the distance they can reach when climbing at different angles before even considering designing a level.