Mario & Luigi: Partners in Time

Mario & Luigi: Partners in Time was the DS debut of the bros RPG series, and it used the launch hardware's two screens as the entire premise: a time-machine mishap strands present-day Mario and Luigi alongside their baby selves, and battles run all four characters at once, split between top and bottom screen, each pair with its own timed-hit rhythm to track simultaneously. It's a busier, more chaotic combat system than the GBA original, demanding you watch two fights at once instead of one.

Baby Mario and Baby Luigi aren't just palette swaps — they ride on their adult counterparts' shoulders for traversal puzzles, split off to squeeze through tiny gaps, and unlock their own attack techniques that combo directly into the adults' moves. The story bounces between Peach's Castle in two eras, with Shroob invaders serving as the connective antagonist across both timelines.

This page hosts the verified Partners in Time ROM, built for Delta Emulator on iPhone — load it directly with no BIOS file or extra setup required.