Noooo…it was 💊 lol
@tisha @DeltaWye Kind of. they were similar but with slightly different mechanics. in Tetris the blocks do not come apart and have to be removed in horizontal lines. in Dr Mario you only need to match 3 of a color (or I'm guessing pattern on the Gameboy.)
@tisha Sadly, my new Game Boy can’t play Dr. Mario. :(
Modder Does What Nintendo Didn't: Hack Lego Game Boy to Play Real Cartridges

And yes, you will be able to buy a kit to turn your brick-based handheld into a real Game Boy.

Gizmodo