1- Yeah, i completely forgot to mention (in game) that you can respawn by pressing "R".
But thats a great ideia to put a "shortcut" to respawn without the clicking
2- That's kinda the point and skill gap of the game, deceleration and aceleration are important and you are not meant to finish a level on the first try. When and where to jump are things that i want the player to learn between runs. After, try to optimize it, go for a real run and do a good time.
But thanks for the review!!