It's both similar and different to the Genesis version. Both follow the same plot and overall theming of the levels, but the mechanics, controls, bosses and level designs greatly differ. I would say that the music and sound design in the Master System version was a bit hit or miss. Makes sense since the Genesis one just has better sound and ost. The slippery controls were just as irksome as the slow and floaty controls of the Genesis if not more so at times, so sadly no improvement there. Having to use objects to throw around to use as a weapon, platform or for a puzzle was more fun than simply platforming like in the genesis. The bosses also feel well done but their ai were all over the place, so the Genesis bosses were a bit more balanced but less unique. The level designs were unique and great between each version but if I had to choose I very slightly preferred the levels in the Master System one. The Genesis levels feel more vibrant and pretty with many details and great design, but the Master System ones felt more explorative and expanded upon. Finally, the final boss was a bit different on both but I also liked the Master System's variant instead.

Sorry for the constant comparing, but I had just played this after beating the Genesis one so I couldn't help myself. Overall, both are amazing versions of the games, each with their small issues, but I feel like the Master System version slightly takes the cake on the one I liked the most.