Most skilled TF customizers have done a Shockwave from an Energon Shockblast with new arms and an arm hose. I have too, using BW Depthcharge arms so the hands could flip to boosters (or drills?) for alt mode. This time though, for my own collection, I went with the slogan "If it aint broke, don't fix it". Giving him 2 new arms almost always results in a less appealing alt mode, loss of one of the 2 alt modes, or magnetic add on alt mode parts. I personally like the alt modes Shockblast had just fine. They aren't great, but they are okay and he has 2! What I did here was keep his alt modes, add one new arm, a hand cannon, and a hose, then repaint him to G1 colors. Now I have a Generations Shockwave figure! I know, he isn't a cybertronian flying pistol, but lots of Classics/Universe/Generations/RTS figures have different alt modes from G1. I painted him in all metallic paints over a silver base coat so I can go in and add very realistic wear to him with a steel wool and/or sharp object later if I decide too.