Use the Sprites Resource
You should ask more detail. You can find Koromon in Digimon Adventure, Digimon Adventure 02, Digimon Frontier, Digimon Savers/Data Squad, Digimon Adventure V-Tamer 01, Digimon Next, Digimon Virtual Pets, Digimon World DS by either get it by choosing him as starter or degenerate DotAgumon, Digimon World Dawn/Dusk, Digimon World Championship, Digimon RPG, and Digimon Masters.
gamestop
To obtain digimon after your starter, you must find them in the wild. it will be scanned. If you find a certain digimon enough times it will reach 100%. now go to your digifarm, select the digimon icon and select Digiconvert. choose the digimon you scanned and you can make one.
you match 2 digimon but i dont no wich 1s you match 2 digimon but i dont no wich 1s
Digimon World 4.
you can find wormmon in resistor jungle.
pelette amazon
Sprites are not real.
Talk to the digimons in the digifarm
find someone who has it in dusk and trade
Somebody will give it to you once you save him.
in mudfrigimon village (square world east)