Mijumaru has been appearing in Pokémon Center Collections since the Black & White Era, being featured in 42 of them over the years! Though after 2013 you would think he rarely shows up due to XY becoming the new generation, he consistently makes appearances in Pokémon With You collections with the other starters, as well as various other collections, especially water themed ones! Never a dull moment collecting this lovely otter. <3

 

I've got a separate page for every Pokémon Center Collection featuring Mijumaru, listed chronologically from earliest to latest, so click any of the links below to be transported! Also, if you feel that an older collection fits my criteria let me know! I may have either glossed over it, or there may be a particular reason why I don't have items from it.