| Name | Attribute | Level | Type |
|---|---|---|---|
| Metarealm Monsters | - | 1 | General |
| Mia | - | 1 | General |
| Mia's Assistant Jo | - | 1 | General |
| Micki | - | 1 | General |
| Middle Brother | - | 1 | General |
| Midnight Tempest Prospero | 57 | General | |
| Mighty Man | - | 1 | General |
| Mighty Mini Natsuko | - | 5 | General |
| Mighty Moomoo | - | 5 | General |
| Mikhail | - | 1 | General |
| Milksha | - | 1 | General |
| Mimi | - | 1 | General |
| Mimi's Father | - | 1 | General |
| Mine Kingdom Royal Guards | - | 1 | General |
| Mine Leader Zali | - | 50 | General |
| Miner | - | 1 | General |
| Miner | - | 50 | General |
| Miner Foreman | - | 1 | General |
| Miner Ken | - | 1 | General |
| Miner Theo | - | 1 | General |
| Miner Waldorf | - | 1 | General |
| Mineral Crystal Source | - | 1 | General |
| Mineral Crystal Source | - | 1 | General |
| Mingming | - | 1 | General |
| Mingming | - | 1 | General |
| Mingming | - | 1 | General |
| Mingming | - | 5 | General |
| Mingming | - | 1 | General |
| Mini Bluefire Drake | - | 5 | General |
| Mini Bulbird | - | 5 | General |
| Mini Chicken Puppet | - | 5 | General |
| Mini Chicken Puppet | - | 5 | General |
| Mini Christmas Machine Snow Spirit | - | 5 | General |
| Mini Fabien | - | 5 | General |
| Mini Fluffles | - | 5 | General |
| Mini Frog | - | 5 | General |
| Mini Juggernaut | - | 5 | General |
| Mini Lambchop | - | 5 | General |
| Mini Molten Golem | - | 5 | General |
| Mini Natsuko | - | 5 | General |
| Mini Nerokas | - | 5 | General |
| Mini Omar | - | 5 | General |
| Mini Prospero | - | 5 | General |
| Mini Redfire Drake | - | 5 | General |
| Mini-Mawr | - | 5 | General |
| Miracle Merchant Moomoo | - | 1 | General |
| Missing Teen Yates | - | 1 | General |
| Missy Elisa | - | 1 | General |
| Mistan Soldier | - | 1 | General |
| Mistress and Natasha | - | 1 | General |