Cold Devil is a very early platformer, which is more of a technical demo at this stage – with a a few platforms and a single enemy that you can’t interact with.
It moves well and you want to see more as a result, but this is pretty much it. We’re not sure if the developer did anything more than this and if there are plans for more to be done. Unfortunately we’ve not heard anything more about it since 2017.
Hopefully its just in a temporary hiatus and will be resumed some day in the future.