I was thinking of trying to beat some of these, but do you guys have any specifications for emulators? Just wondering, thanks!

I personally use emulator (specifically bizhawk with gambatte core). I don't see the problem with it as I assume most people don't have the hardware to record Gameboy games

I personally am okay with anyone else doing runs on emulator, especially to help the community grow. I can understand the challenges for verification and streaming as someone who did this run on console (GameCube with the Gameboy Player attachment).

I have tried emulator with Gambatte and it seems stable for the most part (including lag with quite a few units on the field).

Just a heads up that communities for other Gameboy games that are competitive with highly optimized routing (namely Pokémon Red/Blue) are stricter on which type of emulator and settings (displaying the FPS and the window).