https://www.seibertron.com/transform...me-more/42207/
Looks like Shockwave has a "submarine" mode.
Edit by griffin...
Wave 2 images in the link above were added to the TakaraTomyMall website, with a release month of March.
- SG-08 Blowpipe
- SG-09 Battle Patrol
- SG-10 Air Strike Patrol
- SG-11 Flywheels
- SG-12 Hound
- SG-13 Megatron
- SG-14 Shockwave