Funguys Swam Crossover Question

[frail glade]

Hi everyone,
I purchased Funguys Swarm and redeemed the code in Coral Island, and was wondering, do the items not show up in multiplayer games?
Also, do the items only get redeemed for 1 save?
Thank you.

[upbeat badge]

Items are for all save current or future. I believe however that in mp it only shows up for host