Your other post contains good feedback, but without telling me how long you practiced each minigame or what you think needs improving this feedback is not helpful.
Keep in mind it was months before I saw anybody complete ladder climb on undertale before the cells were opened, and now it's one of the fastest ones. If I can complete all the games within 20 seconds after 15-30 minutes of practice, I have faith others can too.
That doesn't mean they couldn't be improved to be more informative though. I'll add a sign telling players to crouch over gaps in no jump climb and to avoid the walls of water race, for example.