Princess Rescue is a homebrew game that's inspired by the Super Mario series, even following the same general storyline (namely a princess gets kidnapped by a big evil spiked turtle). It is up to a lookalike of a famous plumber to save her from its clutches.
Noxxa and EZGames69 rescue the princess by completing every level without dying a single time. If you want to see this game beaten in the fastest way, please watch the any% run.