Princess Rescue is a homebrew game that's inspired by the Super Mario series, even following the same general storyline (a princess gets kidnapped by a big, evil, spiked turtle). A look-alike of a famous plumber must save her from its clutches.
This run completes every level without dying a single time, now 1.1 seconds faster than the previous run, thanks to better optimisation. If you want to see this game beaten as quickly as possible, please watch this run.