Lovely mystical atmosphere! The art style is impressive. I can see that you paid attention to the animation and details!
I like how the tsunami is totally unexpected (as there was no tutorial). Probably it should be a wildfire instead of a tsunami though, but I can imagine how a tsunami can wipe out the fungus.
Number 3 looks weird. The white keyboard numbers could be larger - accessibility and legibility.
Besides, the played should be able to use the up arrow key to jump .
A tutorial would definitely clear things up for the player, but I understand the tight time constraint of this game jam.
Hope to revisit this same when these little quirks are tweaked.
Good job!