No, a bunch of Gen 1 Pokemon are completely missing from the code of these games. Weedle, Pidgey, Rattata, Spearow, Ekans, Sandshrew, Nidoran, Jigglypuff, Zubat, Paras, Venonat, Psyduck, Mankey, Poliwag, Abra, Bellsprout, Tentacool, Geodude, Slowpoke, Magnemite, Doduo, Seel, Grimer, Drowzee, Seel, Voltorb, Exeggcute,…