2D or Not 2D, That is the Question - 12 Recent 2D Games | Debug Design
Everything You Need To Know About Making A 2D Game | GameMaker
2D games with great combat (without counting fighting games) | NeoGAF
Hard Time on Steam
Party Hard on Steam
2D platform games: The 7 hardest in the world
ArtStation - I want to the best - 2D difficult platformer game
2D platform games: The 7 hardest in the world
2D platform games: The 7 hardest in the world
10 Best 2D Roguelike Games
Top 10 Hardest 2D Platformers of All Time - YouTube
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The 12 best indie metroidvania games - Polygon
10 Best 2D Platformers
Party Hard (video game) - Wikipedia
2D Games - Best Free Unlimited Games - GameTop
Volgarr the Viking and the 2D Gaming Renaissance | The Maximum Utmost
2D Lighting with Hard Shadows | Slembcke's Computational Corner
Noob question about making 2d art thats not pixel art or vector : r/Unity2D
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Volgarr the Viking and the 2D Gaming Renaissance | The Maximum Utmost
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The 25 best co-op games on PC | Rock Paper Shotgun
The 25 hardest video games of all time | Games | The Guardian
Most Difficult 2D Platformers Ever | From Super Meat Boy to Dustforce - GameRevolution
So, out of boredom I did a hunger games simulation with characters from cuphead and hollow knight, as both are really hard 2d games with quite many hard bosses. And, well... :
