The core idea is cool, but it needs some more effort to unleash its full potential.
First of all, the text is easier to read, when you have a fixed Font Size. Adjust the textbox to the screen/camera size and make it big enough for your biggest text to fit in well. This will help the player read much more fluently. Also it's never a good idea to use black on white brackground for texts. It's too stressing for the eyes on a monitor. You could go for a grey or colors instead and an adjusted font. Now to the intro: It's okay-isch, but you could have implemented it a bit smoother. If I got it right the guys in the car are talking? Or having a phone call. So why not start with "Shit my car broke, I can only move backwards, what do I do now?!" and then the guy response with "I will watch the aliens, drive backwards" and then you just do this for the first few meters with a way simpler obstacle course than you have now. Then the first energy ball appears and the driver says "hey i drive through the energy balls, make sure to get that gun ready, how much ammo is left?" and the other one says sth like "we have 2 so i only need one now" and then you collect the first one and can test it out. Afterwards you can simply collect them through the course. You teach the player the basics while playing the game and have a narrative.
Now to the graphics. The shader is not the best. It works for the game jam, but definetly needs to improve if you wanna continue working on it to make the game more appealing. It looks like what it is, the general prefab from any 3D software. The modeling style itself is cool though.
The course is too hard from the beginning. Also when you do a whole wall with only one way to drive through, you definetly need more visual clues OR narrative to get where you have to go. Or make the camera see more of what's before... I mean... behind you. So it feels more fair.