And if Wikipedia is to be believed it's presented in a eye wateringly high resolution of 112p.
This high of res.
Edit: Of course the bit rate was pretty damn low as well. Here's a comparison video I found. This comparison uses the higher bit rate version from the Shrek GBA video cart not the Shrek+Shark Tale video cart though so keep in mind, this is the better version.
Not gonna lie, 112p video is actually kinda amazing for a gameboy advanced cartridge. I dunno how much space that'd take up, but I'd bet it's more than your typical GBA cart.
I had a few of these as a kid, I think I still have one floating around lmao
The resolution is as terrible as it sounds lmfao, but when I was a kid it was the best you could do other than Video now which iirc was only marginally better and couldn't play games