This is a speedgame. And do you know what it should have? Speed. A way for the players to get faster if they learn the mechanics properly. Not from just not dying. I think the game looks beautiful, but my gosh is this character slow. The jetpack is slower than the actualy player walking, and it doesn't recharge while airborne? Why? I mean, you could have a small cooldown before it recharges instead of me having to wait on the ground for the warning sign to stop beeping. A restart button would be nice, because I found myself in a lot of situations where I know I'm dead, and I'm waiting to die. At that point just end my misery quick. The first checkpoint timer should just restart when you fail, because it's just time loss to die and then see the timer still going.
I don't want to wait for my jetpack to choose when we're going, I want to be more in control. Let me restart with the press of a button. Let me recharge the jetpack while not using it. Let me choose when I fall into a pit, and not my character slipping on a random bar of soap.
On a real note though this game looks great, and the SFX are on point. Could maybe use calm music or ambient sounds, but the focus should be on how the character controls if people should want to play this game multiple times to improve their time.
GG