地球が大好き　エコロ爺　妖怪ウォッチ3アイロンビーズの図案

アニメ第118話で初登場。エコロ爺は芽が生えている地球を抱いている老人の妖怪。とりつかれると積極的にエコ活動を始めるようになる。

Ecolojii is a member of the Heartful Clan and makes its first appearance in episode 118 of the anime.  Pictured as an old man hugging an earth-like globe, anyone possessed by this yokai proactively tries to do something for the planet. The name ｢エコロ爺」is a play on ‘ecology’ and ｢爺」’jii‘ which means ‘old man.’