The contents of each Mad Lab Mini vial are a surprise, whether they are sold individually or as a set. And with thirty-four figures to collect & a random distribution within the different rarity levels, there’s a good chance you will get a different group of characters in each set you buy. That said, there’s still a small chance you could get the same character twice. If that happens, you might decide to mutate one or both of the characters. It is really easy to create new species by hybridizing different characters – just pop the head off any character and attach it to the body of any other character. If you collect all 34 creatures, you can create over 1000 different hybrids! It can also be fun to create larger vats of biosand, terraclay, or geoslime by combining matching substrates from individual Mad Lab Mini vials. And of course, you can always trade Mad Lab Mini creatures with your friends!