Cachipun With Waifu Furry Edition -v0.1- -sti D... -

The truncated “-Sti D...” is likely a developer or studio tag. Guesses include:

Win by choosing the element that beats your opponent’s choice (Rock beats Scissors, Scissors beats Paper, Paper beats Rock). Cachipun With Waifu Furry Edition -v0.1- -Sti D...