Good idea of RPS game with a twist. Easy to play, hard to master kind of game and I played it on mobile with ease. Got to top 3. :3
Well done on making the retro vibe effectively, I like the music.
Cosmetics are nice, it is just hard to unlock skins after 3rd skin because of highscore requirement. I think it would be better if the requirement is based on total accumulated scores. So even if the player is bad at the game and cannot reach the required highscore, player can still unlock skins by keep on playing.