2 of 2 people found the following review helpful
Got this for my pet rat, Harold, and he loves it, and gets all excited now when it is placed in his cage. We are currently on stage 2, which he can do with no problem, and will be going up to stage 3 soon. Stage 1 he learned by accident, as he stood on the disc, it slipped and revealed the treat, but thereafter he was able to move it with purpose. When we used the 2nd stage caps, he sniffed them a bit, realising there was a treat under the cap, by sniffing through the hole in the top, and using his teeth and paws removed each cap with relative skill..... úrd Stage here we come!!