Lemmings (1993)

This port of Lemmings saw a pretty heavy graphics downgrade, with the resolution and screen size being reduced considerably. Perhaps most significant is the need to pause the game while choosing different Lemmings, which drastically affects the gameplay in a way that many believe is for the worse. The intro movie also sees a downgrade in resolution quality and the music/sfx are downgraded to 8-bit chiptune sounds.