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During the GBA bios splash screen (if VBA-M is set to use a bios file -that bios- then open a retail GBA game supposed to connect with the GC game), pressing a button combination (A+Select???) is needed for connecting GBA games with GC games, as opposed to the above method
→Dolphin and VBA-M: Corrections
'''Connect 1~4 GBA Unit Without Game to GC Game'''
First Part!
* Open Dolphin and VBA-M (duh). Make sure neither are blocked by your firmware.
* '''Dolphin:''' Start your game and play until you get to the in-game menu where you're asked to connect a GBA. Under the GC controller options (earlier "Config, Gamecube", now it's with the GC/Wii controller options). You have 4 GC controller ports: change how much you need to "GBA". Leave the game and its music running :)
* '''VBA-M:''' You'll need to uncheck "Options, Emulator, Pause When Inactive". Then, under "Options, Link, Joybus Options", Make sure to enable "Enable Joybus Connection" and set "IP/Hostname" to use default settings, that is (127.0.0.1) or (localhost) - without the brackets.
* THEN, Dolphin will freeze. You'll want to not have the system sound too high if you're using headphones.
Second Part!
* '''VBA-M''': Open the GBA BIOS in VBA-M as if it were a regular GBA ROM. There will be that splash screen but it will stutter a bit.
* Dolphin should recognize the Joybus Link by then and the GC game will detect that a GBA unit was connected.
* To connect other GBA units, open another VBA-M instance and repeat what you did with VBA-M.
Notable games that work:
* The Legend of Zelda Four Swords Adventures: Both two modes available for the US/PAL version work. The third Japan-only Navi Trackers mode works as well, but the game crashes after the naming screen due to a bug in the GC/GBA connectivity.
'''Connect GBA Game to GC Game'''
* '''VBA-M''': Under "Emulator, Bios Files" set the GBA BIOS file directory, and have the emulator use it. This will cause each regular GBA rom you load in VBA-M to show the BIOS splash screen then proceed to the game. It has higher compatibility too.* You do the all the steps above in the '''first part''' of the previous section (needs investigationconnecting a GBA unit without Game to a GC game) until the line with Dolphin freezing when you enable Joylink in VBA-M. Then:* '''VBA-M''': Open the regular GBA ROM to be connected with the GC game in VBA-M as if it were a regular GBA ROM. * There will be that splash screen, but if you do nothing the GBA game starts as usual and the connection doesn't actually happen. What you must do is to hold '''Select+Start''' while the BIOS is loading. This will cause the BIOS animation to stop and wait for connections, and the regular GBA ROM game won't boot immediately. If it goes as intended, VBA-M will stutter a bit and the connection will be initiated.* Dolphin should recognize the Joybus Link by then and the GC game will detect that a GBA unit was connected.* To connect other GBA units, open another VBA-M instance and repeat whatyou did with VBA-M. Please note e-Reader functionality with GC games isn's the actual button combination)t emulated as of yet.
====Dolphin and other emulators====
