The visual presentation is super nice! Core gameplay mechanic is also interesting. I'm usually seeing this kind of unit commanding in strategy games, so it's always nice to see it leak to puzzle genre as well, since I'm not seeing it that often (idk, Lemmings from 1991?!)
Initially I thought you were supposed to leave some of the people behind, losing more and more little guys (counting them down wink wink nudge nudge!!) which I think would be a bit more interesting than just a timer? I managed to get through the floor with like 20 seconds to spare on my first go.
Still, a solid entry for a first jam! Congrats!