Thanks so much for the feedback! Yes, Matty did a great job on the visuals - I'm so glad to have worked with him.
In a post-jam update, I think I'll add a random chance for a spawned bug to be another colour (gold perhaps?) and eating it gives the worm a quick (temporary) speed boost. Let me know what you think of this idea :) I'm also going to add a quick cutscene showing that the worm needs to eat the bugs - thanks for the tip!
I've just checked out your game and left a comment there. Thanks again!