That took a while, I don't even know how I managed to find all of the custard, I felt like repeatedly I just kept missing some of them. It did not help that I kept avoiding areas as the image of the Slendertubbies appeared on the screen, really deterred me.
I feel like at the end of the game I was hunting the Slendertubbies, rather than they were hunting me, they seemed to occasionally get stuck on things. Still they each looked amazing and unique, it was amazing to see the effort placed into making each one stand out.