Ahh yes, I wasn't really able to add in extra things like buttons for the skills (which would make the switched less awkward) since I ran out of time, or clicking for the skills to activate, or some kind of visual cue/ sound when using skills. The first skill is follow, then attack, then wander. They are commands for the slime.
The xbox one controller was tested, and didn't have a ps4 around to test, so I only mentioned that. I used unity's crossplatform input manager which is part of standard assets.
Yeah there is no real goal of the game, unfortunately. I ran out time for that too. At the moment you can just kill the rats and slimes, make the slime bigger, collect fruit and talk to NPCs. My original plan was to craft new slimes or evolve the slimes through battling different creatures, to give them new abilities. When the slime dies the level restarts (I should of put this in the tutorial text).
I'll design better levels next time :) My original plan was to have a few levels and progression of some kind. Thanks for the feedback.