Bullet Phaze

This game is not for the faint of heart. Bullet Phaze is one of those hardcore platform games, which will test your patience. 

The main gimmick of the game is that the main character  "Bit" can change the color of his body to red or blue. Traps and various platforms in the game are also colored in blue or red. If  Bit's color matches the color of an object, he will collide with it, if not he will pass through it like a ghost.
Your goal is to switch to the correct color in time to avoid dangerous traps or to land safely on platforms.
The game offers 32 levels to complete (plus 16 bonus levels). Each one of them has the very unique puzzle/trap design. Of course as expected from a hardcore platformer, the more levels you beat, the more difficult the game becomes. Thankfully the game's kick-ass soundtrack will help your to calm you rage, when you will die more than 100 times.

Screenshots:

 Play "Bullet Phaze" Online

Bloodungeon

"I can't bear your stupid races anymore. It's time for me to have fun.",  - says the dungeon master, who is tired of you racing on the hoverboard through his dungeon. - "I'm improved your board. It now contains a bomb. You have 10 seconds to get out of my dungeon".

Now you must go through all rooms with spiky traps, deadly arrows and self-directed lasers. And you have only 10 seconds to beat each room. The farther you go, the more difficult the task becomes.
And if the game still will be easy for you, then try YOLO mode, where you have only one life. Good luck with that.

Gameplay footage

You can download the game or just play it in the browser:   http://xaychru04.itch.io/bloodungeon