Rock solid platform movement, awesome cutscene, great art and animations, innovative mechanics and you even managed to add a freaking leaderboard?! Super impressive! As others pointed out, the main aspect of the game that needs attention is the difficulty spike. The core mechanic translates to a less “natural” platformer movement control, so it takes a while for the player to internalize the physics. Polishing the collisions would also make the experience more fluid (the game would greatly benefit from a more forgiving “coyote jump”) — which is very important as this is clearly designed to be a speedrunner playground. Great job!