The sets come in various sizes, and each set comes with a little Kreons. These little figures are LEGO-like in appearance and most of them are based on Generation 1 characters. They also come with human figures as well. They can fit inside the main figure in vehicle mode. The sets can be built into robot mode, but can't transform — unless disassemble it to reassemble it into vehicle mode.
Also, despite being made entirely of bricks, the Kre-O figures are extremely stable and maneuverable in robot mode. Some poses that aren't possible on the regular figures are possible on the Kre-Os. This is because they don't transform, allowing the designers to add more moving joints for extra posability.
Basic ($7 price)
- Prowl with Kreon Prowl and human SWAT officer
- Bumblebee with Kreon Red Alert, Bumblebee and human driver.
- Megatron with Kreon Megatron, Shockwave a SWAT officer and a specialist.
- Starscream with Kreon Starscream and Human pilot.
- Sentinel Prime with Kreon Thundercracker, Sentinel Prime, Soundwave and Fire-fighter.
- Optimus Prime with Kreon Optimus Prime, Bluestreak, Skywarp and two drivers.
Still to Come
- Devastator. This is a set consisting 4 separate Constructicons that can be built into their individual vehicle modes, and as part of Devastator.