Bog is a Tarzan-like hamster who appears in Hamtaro: Ham-Ham Heartbreak in Wildwoods. When you first meet Bog, he traps you in a cage thinking you are something else. Upon realizing his mistake he frees you. Throughout the player's time in Wildwoods, Bog will teach you new Hamchat and try to help out to the best of his his abilities.
In a side quest, Bog is looking for a "hot spring egg". Once you find this egg, you can give it to Bog and it will hatch, revealing a little duck. Besides the duck, Bog lives with a talking monkey that the player meets earlier in the game.