Hi, Thanks for the reply.
Yes it's a very cool toy : ) I love it.
I've had a look, it doesn't seem like the head opens. Was there any kind of instruction booklet with these originally? I know some of the features were illustrated on the box but some like the feet extension levers aren't shown. it's made me wonder if there are any other things it does that aren't immediately apparent.
The shop I bought it from, lulu berlu has several X bomber toys for sale, unfortunately a few are incomplete, even my die cast one has only 3 of the red missiles, my smaller dai x one has the leg missiles missing (but is still a very cool toy), they have an bomber that looks fantastic but has the antenna, missiles, and discs missing.