They work. Repairing non-working Arai-kun Pocket Critters is difficult! It's challenging. Working Arai-kun are quite rare! All the Critters I'm selling work! They've been well-maintained, so you can enjoy them for a long time. This series is a fragile toy, so buy them if you find them! I'm also selling super rare Mickey, Minnie, and dinosaurs. Time Sale Pocket Critters Takara The lineup list is fluid. Please check it out. Pocket Critters, released in 1993, were immensely popular. They were always sold in aquariums and zoos, and there were kids in class who collected them. They are in good condition and are recommended. I've collected everything from the standard ones to those that are rarely seen. *You can also check the stock of the Critters you are looking for. (It takes time.) We also accept repair consultations for your Pocket Critters. Please comment.