https://old.reddit.com/r/nextfuckinglevel/comments/1boqeg7/playing_pong_on_a_rock_wall_with_augmented/
That looks fun. There are systems like Kilter board and Moon boards that use holds that light up to create problems, but I like the play element and the pacing variety of this.
I either need more friends or a "play against the computer" version for my backyard wall. Probably more money too... the other systems with programmable lighted holds cost a small fortune.