Hg-engine is not fully completed, which means a number of pokemon do not have sprites implemented, or their abilities are not implemented. Heartgold can only store 255 abilities anyways, so even if I had added all pokemon, many abilities would have to be culled due to the sheer amount of niche signature abilities.
In the end, I had to make calls on who to cut, so I’m sorry if your favorite didn’t make it!
Below are all the non-included pokemon with the general reason as to why:
| Ability Was Missing | Legendary Pokémon | No Sprites / Evo Sprites / Related Mon Sprites Missing |
|---|---|---|
| Komala | Cosmog | Bounsweet |
| Dondozo | Necrozma | Nickit |
| Tatsugiri | Wo-Chien | Pincurchin |
| Oricorio | Munkidori | Dracozolt |
| Gimmighoul | Ogerpon | Arctozolt |
| Cramorant | Terapagos | Dracovish |
| Poltchageist | Arctovish | |
| Morpeko | Smoliv | |
| Eiscue | Squawkabilly | |
| Stunfisk Galar | Nacli | |
| Flittle | Tadbulb | |
| Klawf | Bramblin | |
| Yamper | Orthworm | |
| Dedenne | Avalugg Hisui | |
| Skwovet | Tauros Paldea | |
| Gossifleur | Lechonk | |
| Maschiff | Iron Crown | |
| Passimian | Sandy Shocks | |
| Type: Null | Iron Treads | |
| Wishiwashi | Iron Bundle | |
| Minior | Iron Hands | |
| Yungoos | Iron Leaves | |
| Finizen | Iron Boulder | |
| Mime Jr. |

3 Comments
But Type:Null is in the game?
No, and it’s on this list under “ability was missing”
Baxcalibur line should on the list too, it sprites turn into bulbasaur when following trainer, and they dint have the ability too.