I fixed the timeline! I had some trouble with the difficulty, before taking advantage of the stun mechanic and moving more prudently. I really like that the minimap has to be unlocked even though I nearly missed it entirely, and not finding it the first time around is probably why I failed during my first attempt. I'm not sure if there is a way to increase your stats to make things a bit easier, but I was eventually able to win.
I really enjoyed the enemies art, it kind of reminded of a mix between saturday morning cartoons and Earthbound. The city is gorgeous, too. The contrast between the 2 time periods is great, the postnuclear design of the 2019 enemies does a lot for the ambient storytelling. The music is perfect for the mood of the game, it stopped playing at some point but that's minor. Cool story, too!
Out of curiosity, I edited my save file right after starting a new game to see if I could actually "reach" the stadium as the young selves, and I unlocked the "you broke the game" ending. That was a very nice touch, I laughed out loud!
It's always a lot of challenging fun to play your entries and this one was no exception. Great job to you both!