Yoshi's Island DS
In Yoshi's Island DS, Bowser kidnaps all the babies in the Mushroom Kingdom, including Baby Donkey Kong. He is found after Yoshi beats the 1-8 boss. His first stage is 2-1 (King of the Jungle). He is the third baby for Yoshi to give a ride to. He was the only baby to have his blanket brown. After defeating Bowser and Baby Bowser at the top of Bowser's Castle, Baby DK is revealed to be one of the seven Star Children.
Mario Super Sluggers
He appeared again once more as a playable character in Mario Super Sluggers for the Wii and can be unlocked by playing the single-player adventure with Yoshi in DK's Jungle Stadium. When the player searches a certain tree in the bottom left corner of the level, Baby DK will appear. If the player completes his challenge, he becomes available as a playable character in all modes. Also, interestingly, like DK, Baby DK does not hit with a bat, but with a banana, similar to DK who hits with a boxing glove. He has chemistry with the Yoshi's, the other babies, and every Kong except Donkey Kong himself.