Great take on the theme, and I really like the art style and the sound/music for this.
The contamination bit is still a bit confusing for me -- I couldn't figure out which of the boxes are the ones that explode and which are normal ones. Maybe there aren't any normal ones?
I would have liked some snappier controls. The slow acceleration made me struggle to get around tight corners in a hurry more than once. Also, the other button assignments seemed a bit weird; having three separate buttons for different things and not really indicating which need to be used when. Potentially one button would have been fine? E.g. needing to use the kick button to do the mini game for the terminal wasn't super intuitive, and neither was pressing cancel for letting go of the cart (it feels like using the same button for release could have done the job, probably). I.e. starting the terminal minigame, doing the timed presses in the minigame, enabling grab on the cart, and disabling grab on the cart feels like it could all have been assigned to one button, maybe?