- The Boss fight against the Gargoyle in IV
- All of Stage 5 in V.
Area Guard Name: Vasteel OriginalSub Name: That was when it all began
- And then you fight the boss of Stage V; the resurrected Rynex from the previous game! It comes packed with several Extra Weapons Bay, one of which is a dragon-like expansion, set to "Duel On Top", a sinister remix of "Lightning Strikes Again" from IV.
- The Reveal in V that the Guardian has been helping Cenes Crawford the entire time, deliberately leaving gaps in its defenses and making tactical errors just so she could pull off Suicide by Cop. All so as to stop Khaos from destroying mankind once and for all.
- It's a subtle one, but one of the touches M2 went out of their way to add to the SEGA AGES port of Thunder Force IV, showing how serious they are about their projects? A toggle to allow voice clips to play without interrupting the sound.