I really enjoyed this one!
Though the gameplay was simple, the story really made up for it and still had me invested. I love Squishy's animation of just lightly pacing around, makes it far cuter. I liked the visuals too, The way the Slime and Squishy are made up of different spheres reminds me of Vectorman from the Sega Genesis and it was clever that the segments of the slime indicated the player's health. I also like how the lighting interacts with the model.
The only things I can think to recommend is that it would be good to allow the player to fast forward the text rather than skip it entirely since it is so short. This will allow those who read faster to get through it quicker and those who don't want to read it at all to still skip it entirely or lightly skim read it. Also a pause menu is always a great overlooked feature but I completely understand not having one with the time constraint, I didn't either for my last game jam.
I only ran into two glitches:
1.) If you interact with something while moving, you keep moving in that direction.
2.) The guard can trap you in the corner if you line it up right.
Very fun entry and shoutouts to Squishy.