Thunder Force AC is a horizontal space shooter from Sega and Tecno Soft. Due to the success of Tecno soft's Thunder Force III for the Megadrive (Sega Genesis), it was decided that the game would be brought to the arcade scene in the form of Thunder Force AC. Ported to Sega's System C-2 hardware, Thunder Force AC is almost graphically identical to its Mega Drive counterpart, with only very minor and often unnoticeable differences.
Details[]
Thunder Force AC has been described as a retooling of Thunder Force III because it borrows enemies and stages from the earlier Thunder Force II, as well as adding some original content. The original Thunder Force AC Jamma board is now rare, but the game was ported to the Super Famicom/Super Nintendo (SFC/SNES) in 1992 as Thunder Spirits. A Sega Saturn port was made and included on the 1996 release Thunder Force Gold Pack 2.
A Nintendo Switch port was made and included on May 2020 release as part of the Sega Ages. Rynex also appears as one of the unlockable ships along with its Thunder Sword-equipped variant and Mass Production Model Styx.
Stages and Bosses[]
| Stage | Name | Boss | BGM |
|---|---|---|---|
| 1 | Hydra | Gargoyle | Back to the Fire |
| 2 | Gorgon | Twin Vulcan | Venus Fire |
| 3 | Seiren | King Fish | The Grubby Dark Blue |
| 4 | Haides | Roll Gunner | Omake-2 |
| 5 | Ellis | Mobile Fort | Dark Side Requiem - Death's Face - |
| 6 | Cerberus | Cerberus | His Behavior Inspired Us With Distrust |
| 7 | ORN Base | Base Guarder | Hunger Made Them Desperate |
| 8 | ORN Core | Khaos | Final Point |
| Thunder Force III / Thunder Force AC / Thunder Spirits | ||
| Characters | Jean R. Fern • Sherry M. Jupiter | |
| Ships | Fire LEO-03 "Styx" | |
| Stages | Hydra • Gorgon • Seiren • Haides • Ellis • Cerberus • ORN Base • ORN Core (TFIII) Graveyard • Ruins Inside • Original Battleship • ORN Core (TS) | |
| Bosses | Gargoyle • Twin Vulcan • King Fish • G-Lobster • Mobile Fort • Cerberus • Base Guarder • Khaos (TFIII) Roll Gunner • Defense Satellite • Khaos (TS) | |