There are many games in this jam that are making me go, "why didn't I think of that?" Your battle system is one such instance. It's free of the complexities of the default battle scene while still being intuitive and entertaining. I'm curious to see how well it works on a larger-scaled game.
I would have liked to see more from the puzzle elements present in the game, such as having to figure out the correct order to step on the teleporters, but I still enjoyed the quick, simple experience that it is. The fact that you were able to produce something this entertaining in just a few days is remarkable and inspiring.