I still have Miracle World, and a working Sega Master System. Is a model 1 so it comes with the card reader instead of the 3D glasses.
Model 1 came with the (secret) maze game and an Alex Kid In Miracle World cardridge. Model 2 ditched the card reader, came with the 3D glasses includef and had Alex Kid in Miracle World as an onboard game.
Model 3 sucked.
Edit: All 3 models were sold in Brazil but model 1 was only sold early on since the "e-card games" were not sold in Brazil so the card reader was useless.
Those cards were basically games for the Sega console that existed before the Master System and was only available in Asia anyway.