Short, sweet, and engaging platformer!
First off, the control is some of the best I've felt yet! The character is responsive and demonstrates incredibly tight air control, both while jumping and dashing. The feedback on every action is satisfying, and that's a difficult thing to achieve.
Visually, the pixel art for the environmental details stood out as being very well crafted, especially the "halls of the dead" aesthetic on the different types of platforms. The effects on dashes, explosions, and phasing platforms
Each new variation of the room ramped up the difficulty, but dying never felt unfair or due to the fault of the player. The final variation with destructible green and blue walls was my favorite of the bunch!
Excellent work!