Thanks for the feedback CameronOtten! I'm sorry that some goals were not clear.
Changing colour increases your speed/decreases the virus speed.
Not changing colour means the virus will gradually speed up until it catches you.
If you continue changing colour and keep focused, you'll be able to avoid the virus for longer.
I agree with the addition of pickups being good. Time constraints meant this wasn't possible. I'd also like to add a combo-count and some other abilities etc. if I decide to continue dev on this game.