It's a bit difficult to tell what I can collide with, therefore I run into colliders randomly. The shifting gear doesn't seem to be your common gear system in car games - they don't really work how gears should work (gear 1 gives best acceleration but poor top speed, and the more the gear increases, the less acceleration and the more top speed). The restriction to switching to Reverse gear is also a hassle. The "roll of the dice" element isn't really clear to me, all I see is a random number generator that rolls the dice value which doesn't have any effect to anything. However, I can see potential for this game outside of the game jam theme if you refine it more.