Thunder Force IV hangs

[MadoKage]

It hangs after you defeat a boss while oddly the music still plays

I am using the latest dev build

Tested with every region of the game and it still hangs

[Eke ekeeke]

When you say "a boss", do you mean a specific boss or any boss ? Be more specific if you want me to reproduce your issue.

Also, what dev build are you using, the Wii dol in build directory ? Another port ? Did you tried with previous builds ? I am sure this game was working fine before so figuring in which build this issue started occuring would be useful.

[MadoKage]

It hangs from every boss, and the build i used is 12-22-2017

And yes it worked before, i think its the current dev build that's causing the issue

[Eke ekeeke]

There is a more recent build here : https://github.com/ekeeke/Genesis-Plus-GX/tree/master/builds

I doubt it would fix your issue but you never know. Also try to delete config.ini from /genplus directory on SD card after updating the .dol file, just in case.

Lastly, please confirm if this older build (the one just before 22-12-2017 build you tested) works: https://github.com/ekeeke/Genesis-Plus-GX/blob/2ad037214b4dfb7e448c2bdf5cd9970351b85226/builds/genplus_wii.dol

[Eke ekeeke]

Are you using modified ROMs or cheat codes (game genie for example) by any chances ?

I tried latest version with a patched ROM to reach bosses more easily (using master code & invincibility code from https://gamehacking.org/game/16093) and it indeed randomly freezes when you beat a boss (with music still running).

From analyzing the game, it appears it has several checksum routines that verify more or less randomly during the game (usually when a boss is defeated but not only) if ROM portions have been modified.

There are some codes on https://gamehacking.org/game/16093 to patch those checksum routines, and I indeed got no freeze anymore after applying them to my modified ROM.

[MadoKage]

I'll check out to see this works, and I'm pretty sure I didn't modify the rom

[MadoKage]

The codes worked, however I had to revert back to 12-22-17 due to your newest build giving out dsi errors everytime it loads a game, though that's unrelated here.

Anyways thanks for helping me out with the game Eke

[Eke ekeeke]

This probably means the ROM you were using was actually an hacked version, there are a lot floating around.

As for the DSI issue, please post a picture screen (or the numbers 0x....-> 0x.... ->.... in the lower part of the screen) so I can have a look.