Thank you!
Yes, there are no visuals when accelerating due to the limited time. However, the enemies are faster or slower depending on the speed.
This is something I'm tweaking at the moment, as it's not very satisfying indeed.
Fun fact: At first I made the game faster when accelerating, which looked very nice, but... made everything faster, so also the timer! :D
So I'm looking for ways to speed up the particles in other ways.
This is intentional, the weapon helps you slow down some enemies on the way or destroy the space stations that spawn randomly.
But it is not the goal to destroy everything, dodging should be a critical part of the game :)