Lovely idea. The first minutes of figuring it out are great. However, once you know how to do it you can do it everytime no problem. I wouldn't know how to change this and it's probably fine.
Thank you for playing and the feedback :) Yep actually we have some couple ideas to improve the game progression, (add countdowns, leaderboard, or maybe pickups) we might try out some stuff when the jam is over ;D
Countdowns are a way of solving this, but it could also easily ruin the whole thing. Maby it's just my personal preference, but I enjoy games like this way more, when I'm not on a timer.