1rst gen is obvious. 2nd is Totodile, Croconaw, Feraligatre, Cyndaquil, Quilava, Typhosion Spam Eruption why don't you?, Chiikorita... Bayleef, Meganium, Treeko, Grovyle, Sceptile, Torchic, Combuskin, Blaziken, Mudkip, Marshtomp, Swampert, Turtwig, Grotle, Torterra, Chimchar, Monferno, Infernape, Piplup, Prinplup, Empoleon, Snivy, Servine, Serperior, Tepig, Pignite, Emboar, Oshawott, Dewott, Samurott...