Insteresting game, the grapichs look neat and the boost it's a nice mechanic to have, but the level design and lack of directional control makes a bit frustrating to play.
A lot of the times using the boost makes you die and waste time, others you need to completely stop moving to change direction... A lot of this would be fixed by just changing the level design and making a bigger race track.
Nice work and keep making cool stuff!