I think this game would have been so much better if:
1) It allowed free transformation at any time, so you could switch between F/B/G modes at will. I would have been super happy with that, even if it is basically just switching between side scrolling , top down scrolling, rear view scrolling etc.
2) If the weapons (Gunpod, missiles, head lasers, beam cannons etc) had a bit more closely followed the anime for each VF). Same for enemies as well.
3) If there had been the option to equip FAST Packs & Full Armour for some stages.
4) If there had been more playable VFs that could be unlocked.