Games like Super Mario Bros. X2
Super Mario Maker 2
A side-scrolling Mario adventure that unleashes the creative potential of Super Mario Maker 2 awaits in Story Mode, which contains over 100 built-in courses. And in Course Maker, a wide range of parts, tools, and more are available so you can construct your own courses. Want coin-shooting cannons? Bowser riding on a giant Goomba? Cat Mario sliding down slopes to take out an army of baddies? Go for it! You call the shots. Pass a Joy-Con controller to a partner to build co-operatively on a single system!
Pikuniku
Pikuniku is an absurdly wonderful puzzle-exploration game that takes place in a strange but playful world where not everything is as happy as it seems. Help peculiar characters overcome struggles, uncover a deep state conspiracy, and start a fun little revolution in this delightful dystopian adventure!
Super Mario Bros. X
Super Mario Bros. X is a Mario fangame that blends elements from Super Mario 1, 2, 3 and World. It has many power ups, such as the Ice Flower, Hammer Suit, Tanooki Suit, Kuribo's shoe, The Billy Gun, and Yoshi. You can also play the game with a friend in the 2 player co-op mode, where the screen seamlessly splits and combines as the players separate and rejoin. This fangame is most notable for its extensive level editor that allows you to create almost any kind of level that you can imagine. The game and engine were supported by the original creator until 2011.
Sexy Hiking
Sexy Hiking is a freeware physics-based platformer for PC created by Jazzuo. This is the game that inspired Bennett Foddy to develop Getting Over It with Bennett Foddy.
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 Flashback
Super Mario Flashback is a fan game developed by Mors. It is an unofficial game that tries to adapt features from both the 2D and 3D Super Mario platform games.
Sonic Re;Velocity
A 2D Sonic fan game with a heavy focus on high-speed momentum and stupidly fast platforming, with a simple control style, a unique gameplay style and a strange emphasis on going as fast as hedgehogly possible.
Sonic Adventure Blast
Sonic Adventure Blast is a fan game that aims to capture the feeling of movement in Sonic Adventure and Sonic Adventure 2, while making various changes and additions to make it feel new and unique. There are 22 different levels (plus a boss fight), with a total of 60 different missions to collect A ranks. There are also hidden NPC's hidden throughout the levels to collect. You can unlock different skins to play as by finding these hidden NPC's and getting A ranks. A large amount of levels are from Sonic Adventure and Sonic Adventure 2, but there are also plenty of levels from other games as well. Delfino Plaza and Noki Bay have been made into treasure hunting levels, where Knuckles searches for randomized emerald pieces. In Kingdom Valley, you play as Tails, who can use his fly ability to reach the many cliff ledges and structures in the level. There are four different types of missions - Normal Mode, Ring Attack, Lost Chao, and Hard Mode. Ring Attack has you collect a certain amount of rings, which vary per level. In Lost Chao, you have to search for a chao hidden somewhere in the level. Hard Mode is for treasure hunting levels, and the pieces are not randomized, but you don't have a radar, so look closely!
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.
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.