Relic Castle

I use Black and White graphics and sprites on my little game project and I got an issue due to the bike sprite.
In the original 4gen/5gen game, characters have an iddle sptite for their bike, but since Pokémon Essentials use 3gens sprites, the parked one does not exists. And it can looks a bit weird especially with Rosa :


Here's a results I want, from the official game :