These 28 packs used to cost around $8.00 There were 4 different sets sold in all. They were probably the best value for your dollar, with the plus being that you knew you weren't going to get any doubles. So by obtaining these four different sets, you could quickly get the heavy lifting done of completing half of your collection.
While the packages didn't specifically list what figures were in each set, we quickly cataloged their contents from unopened sets we acquired back in the 90s. Shown above, are my four sealed mint sets that I opened up back in 1997. The sets and figures included in each box were as follows..
#1 Thug Busters Set
10, 13, 17, 21, 24, 25, 26, 38, 43, 44, 48, 49, 51, 53, 54, 64, 67, 70, 72, 76, 78, 84, 90, 91, 95, 103, 161, 232
#2 Cosmic Crunchers Set
18, 45, 47, 79, 86, 88, 81, 83, 89, 92, 97, 105, 114, 120, 128, 129, 132, 144, 184, 188, 196, 192, 198, 200, 201, 202, 203, 205
#3 Mighty Maulers Set
5, 6, 12, 52, 57, 59, 63, 74, 80, 87, 94, 115, 169, 170, 171, 173, 175, 176, 193, 194, 204, 207, 209, 212, 214, 218, 226, 230
#4 Cosmic Showdown Set
4, 7, 8, 9, 32, 37, 62, 65, 66, 69, 98, 99, 119, 121, 122, 127, 130, 137, 142, 146, 147, 148, 150, 158, 159, 160, 162, 233