Games like Blooper's Revenge
Planetary Plumbers
Planetary Plumbers was a knockoff Mario game that was playable in the web browser. The game was a bootleg game which was based on Super Mario Galaxy. The game is now currently unaccessible due to the shut down of the Joystick Browser Games website alongside the requirement of a browser extension to play the game.
Toadette Strikes
Toadette Strikes is a fan game by Thunder Dragon, sequel to Toad Strikes Back. It is a side-scroller platformer with mechanics borrowed from the Super Mario series, mainly Super Mario Bros. 2.
Super Mario Sunshine 64
A 2D web browser game which uses aspects of Super Mario 64 and Super Mario Sunshine:
Super Bird
Flappy bird clone for Playdate
Manic the Lad: Rage Against the Maniac
Here is the video game “Manic the Lad: Rage Against the Maniac”! Released in 2003 on Windows, it's still available and playable with some tinkering. It's an action game, set in an arcade, platform and fan made themes.
Toad Strikes Back
Toad Strikes Back is a fan game developed by Thunder Dragon. It is a side-scroller starring Toad, with mechanics borrowed from the official games of the Mario series, such as Super Mario Bros. 2. The game received a sequel in 2015, Toadette Strikes.
Super Mario
Super Mario features beautiful graphics courtesy of Bill Nagel, 13 unique enemies, 64 unique background tiles (some with animation), fast scrolling, powerups like growth or flower-power, fireballs, a somewhat-challenging boss, an animated ending scene, and an expansive easy-to-use World editor that can be run on a calculator.
Super Mario Stardust
Super Mario Stardust is an unofficial fan game based on Super Mario Bros. In this original Super Mario platformer, Mario embarks on a quest to save the mushroom people, who have been turned into stone blocks! Collect both the fire flower and feather power-ups (and use them simultaneously), and travel through eight huge levels with diverging paths to defeat the evil Koopa clan.
Unfair Mario
In Unfair Mario nothing is as it seems. Try to avoid hidden traps and get to the final flag.
Paper Mario 3D Land
Paper Mario 3D Land is a fangame that is inspired by the many games in the Paper Mario series. It has visuals inspired by the original Paper Mario, combat system similar to Super Paper Mario, 3D environments and movement like in Paper Mario: Sticker Star and gameplay mechanics based on Super Mario 3D Land and Super Mario 3D World.