Goppa is a group of pump-like creatures that can be found in the Footprint Path 2. There are total 4 of them and each has a different color.
There are small buttons that are near by them, and pushing the buttons will cause the Goppa to react by making a disturbing face and violently spraying blood like a pump. These buttons may be a part of the Goppa's body.
- Goppa probably have some similarity with the appearance of Onsen-san, as they all have a pipe that comes out from the right of their head.