So I was putting my Decoys back in their Boxes a few weeks ago and wanted to put them in the same order they came out (I had written names not numbers on a piece of paper when I first took them out). When I got to the seekers and Sideswipe/Red alert I couldn't remember who was who as far as the decoys are concerned because they are all the same colour. I thought about looking their numbers up but then realised that on mine at least (japanese box set/s) their names are stamped on the back of them in Japanese Katakana
I have been self teaching myself Japanese for a year or two now so was excited to translate them (with my smartphone app of course ) anyway, I was able to work out who was who

example below:



Pretty sure this one is Starsream.
On his right leg it reads スタースクリーム　or SU TA - SU KU RI - MU