Grab a pencil and start respooling, as tape-based Pokémon 'em up Cassette Beasts today revealed that the previously announced free update adding multiplayer will arrive on the 20th of May. Up to eight players will be able to explore together, as well as take part in two-player cooperative "raids" and duel each other. Also launching alongside this will be a collaboration with another Poké 'em up, Moonstone Island. Have a peek at all this in the video below.