I don't think I need to repeat how amazing Mega Man Unlimited is. Here's my review again.
The original game is only available on Windows, but the wizards at OneWeakness have ported it to Mac so that no one is left out in the cold. Get downloading and start dying about a million times.
Something else I'd like to address is the game's high level of difficulty. I personally thought it was tough yet fair, but others have found the challenge much too severe. To address those problems, MMU dev Philippe "MegaPhilX" Poulin has been working on an Easy mode that will appear in a future game-wide balance update. The new mode will add safety blocks over some pits and spikes (like in Mega Man 10), add extra checkpoints in the castle levels, and alter the speeds of certain obstacles like the laser traps in Rainbow Man's stage.
There will also be a one-hit death mode. Yeah.
Mega Man Unlimited Mac [OneWeakness] (Thanks, Kyle!)