And it's submitted!
7:15 AM, and I'm still awake. Been working on bug fixes, polish, some tweaks, some new effects. At some point I accidentally made an earthquake effect. It works well. I don't remember doing it, but I'm rather tired so who can tell.Anyway, it's submitted! I hope people enjoy it. There's definitely a lot more I would love to do (such as fine-tune the graphics in level 1 and 3, which I didn't have time for, and add sound). However, considering it's a solo project and I spent a week on it, and have never written anything more than a super basic puzzle game before, I'm quite happy with how it turned out.
Please give it a try, and do not hesitate to let me know of areas I can improve (things I did well would be nice to hear too!). There's a lot of puzzle elements involving time travel I would have loved to spend more time on, but couldn't get to, so I plan to continue this game and turn it into something a bit more in-depth.