Tool-assisted game movies
When human skills are just not enough

Submission #3567: TASeditor's GB Fortified Zone in 09:38.57

Console: Game Boy
Game name: Fortified Zone
Game version: USA
ROM filename: Fortified Zone (Ikari No Yousai) (U).gb
Emulator: (unknown)
Movie length: 09:38.57
FrameCount: 34714
Re-record count: 29499
Author's real name:
Author's nickname: TASeditor
Submitter: TASeditor
Submitted at: 2012-04-12 16:12:05
Text last edited at: 2012-04-25 01:27:29
Text last edited by: Ilari
Download: Download (2998 bytes)
Status: published
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Author's comments and explanations:


(Link to video)

Fortified Zone is a 2D shooter with four stages. You can play with two different characters who are named Masato Kanzaki and Mizuki Makimura and you can use different weapons and upgrades.

Game objectives

  • Emulator used: VBA23.4a
  • Takes damage to save time
  • Uses glitches to save time


I played mainly with Mizuki Makimura, because she has quicker movement and can jump over obstacles. But she can't pick up some stronger weapons. Masato moves 0,75 pixel per frame, Mizuki with 0,875 pixel per frame. In battles I switched the characters to do more damage.

Stage by stage comments

Stage 1: Field

I used a glitch, which allows to go through eight pixel wide walls, to go directly to the boss. I got medicine, an upgrade for Mizukis weapon and grenades.

Stage 2: Jungle

I used the same glitch here. But I had to collect two keys in order to reach the boss.

Stage 3: Cave

Sadly there's no place where I can use this glitch, so this stage is really long. I had to collect many keys, which costs a lot of time. The boss was a big problem. At the beginning the boss has an energy of 100, according to the address 0xC14D, but the value jumps automatically to 200, no matter how much damage I did.

Stage 4: Fortress

Here's also no place to use the glitch. This stage has two bosses. The entrance to the second boss is closed until the first boss is defeated. It is also needed to collect many keys on this stage. I collected a stronger weapon.

Other comments

It is possible to avoid being hit several frames after the game was paused.
Nach: This is hardly the best TAS I've seen, but it was decent. It was nice to see you shoot at enemies before they appear on screen, which makes the TAS quality noticeable. The game is also an old classic that many people who went looking for Gameboy games when there were so few to choose from will remember. Decent audience response. Accepting as first run for this game.
natt: Processing...

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