P.E.A.K
From a technical standpoint, this might be one of your best game jam games. As expected from your work it's decently difficult but in this case I feel like the difficulty comes from a perfectly balanced set of mechanics (not that the difficulty of something like Cheers or Alien Dog Deportation [which are harder imo], I rather like it, but in this game I think the mechanics make it technically very interesting).
I think the heat mechanic combined with being unable to charge a shot underwater is genuinely perfect. You are forced to restrict your movement and your ability to retaliate by entering the water, which has it's own threats, making the player have to think about their timing for both entering and exiting the water. Also the need to charge a shot restricts a certain someone from cheesing their way through encounters with spam. Idk this is kinda wordy so tldr, the mechanics are very well balanced to make an engagingly difficult game.
The paper art is so cool btw. Especially the animated horses. It's a really unique style that I haven't really seen before but definitely adds a lot. The rest is pretty simple but I don't think that's really a problem.
Finally, there's not much of a story but the general plot is the type of crazy stuff that I like from your games. Also the population counter is sooo good, especially how less and less people show up to stop you as the population gets wiped out; until you are just left to wander a dead world.
tldr: Good game :), cool mechanics and neat art, funny concept, etc. :) <3