You have to go to the hot springs and go to the maintenance room thingy (should be highlighted in yellow) you need a bunch of junk to progress though it, and at one point you beat up slime, doing so gives you slime secretions
Viewing post in Klee Prank Adventure v1.15 EARLY ACCESS! comments
you have to use junk there? But how? I have completed all the pranks (even co-op) but every time I go to that room minigame starts which is completely down to luck and I was even able to beat that slime 3 times in a row but on the fourth I missed the minigame and klee fled and I was unable to do 3 consecutive victories again
Problem fixed. I play PC version on my tablet through joiplay and there is probably some bug that makes the indicator that you are supposed to stop in the green place to go like ten times faster so I installed the android app and did the minigame there (there the indicator was much slower and the minigame was actually doable) and then transfered that save back to the PC version so I can continue playing there, because the quality of images is a lot better in the PC version.