I was watching Transformers Cybertron the other day and i the idea of Cyber Key things. The keys are added just so a transformer can access weapons or reveal claws or whatever, but i have to say that I like Megatron's key powers
like the arm sheild/sword thing and the machine gun i wouldnt mind getting that toy, but everything else isnt impressive imo
The most un-impressive thing about it for me is that they just happen to have new weaponry that they don't know about, that cna be activated by a cyber key. Surely, with all the tech they have, they should know about any extra weaponry on them.